Finding the Fourth Proportional to 147,870,337.74, 204,047,371.72 and 81,789,413.90

Step by Step Solution

1. Step 1: Write the proportion equation
   147,870,337.74 : 204,047,371.72 = 81,789,413.90 : x
2. Step 2: Convert to fraction form
   147,870,337.74/204,047,371.72 = 81,789,413.90/x
3. Step 3: Cross multiply
   147,870,337.74x = 204,047,371.72 × 81,789,413.90
4. Step 4: Simplify right side
   147,870,337.74x = 16,688,914,940,814,236
5. Step 5: Solve for x
   x = 16,688,914,940,814,236/147,870,337.74
6. Step 6: Final answer
   x = 112,861,816.62