Finding the Fourth Proportional to 139,084.62, 208,665.84 and 45,655.98

Step by Step Solution

1. Step 1: Write the proportion equation
   139,084.62 : 208,665.84 = 45,655.98 : x
2. Step 2: Convert to fraction form
   139,084.62/208,665.84 = 45,655.98/x
3. Step 3: Cross multiply
   139,084.62x = 208,665.84 × 45,655.98
4. Step 4: Simplify right side
   139,084.62x = 9,526,843,417.72
5. Step 5: Solve for x
   x = 9,526,843,417.72/139,084.62
6. Step 6: Final answer
   x = 68,496.74