Finding the Fourth Proportional to 139,359,438.29, 209,025,649.98 and 42,315,998.94

Step by Step Solution

1. Step 1: Write the proportion equation
   139,359,438.29 : 209,025,649.98 = 42,315,998.94 : x
2. Step 2: Convert to fraction form
   139,359,438.29/209,025,649.98 = 42,315,998.94/x
3. Step 3: Cross multiply
   139,359,438.29x = 209,025,649.98 × 42,315,998.94
4. Step 4: Simplify right side
   139,359,438.29x = 8,845,129,182,986,490
5. Step 5: Solve for x
   x = 8,845,129,182,986,490/139,359,438.29
6. Step 6: Final answer
   x = 63,469,896.92