Finding the Fourth Proportional to 139,715,543,494.56, 209,608,583,660.54 and 38,986,326,462.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,715,543,494.56 : 209,608,583,660.54 = 38,986,326,462.50 : x
2. Step 2: Convert to fraction form
   139,715,543,494.56/209,608,583,660.54 = 38,986,326,462.50/x
3. Step 3: Cross multiply
   139,715,543,494.56x = 209,608,583,660.54 × 38,986,326,462.50
4. Step 4: Simplify right side
   139,715,543,494.56x = 8,171,868,671,931,008,942,080
5. Step 5: Solve for x
   x = 8,171,868,671,931,008,942,080/139,715,543,494.56
6. Step 6: Final answer
   x = 58,489,331,018.84