Finding the Fourth Proportional to 102,116.27, 140,899.59 and 59,666.60

Step by Step Solution

1. Step 1: Write the proportion equation
   102,116.27 : 140,899.59 = 59,666.60 : x
2. Step 2: Convert to fraction form
   102,116.27/140,899.59 = 59,666.60/x
3. Step 3: Cross multiply
   102,116.27x = 140,899.59 × 59,666.60
4. Step 4: Simplify right side
   102,116.27x = 8,406,998,772.20
5. Step 5: Solve for x
   x = 8,406,998,772.20/102,116.27
6. Step 6: Final answer
   x = 82,327.72