Finding the Fourth Proportional to 108,499.14, 149,731.47 and 60,762.20

Step by Step Solution

1. Step 1: Write the proportion equation
   108,499.14 : 149,731.47 = 60,762.20 : x
2. Step 2: Convert to fraction form
   108,499.14/149,731.47 = 60,762.20/x
3. Step 3: Cross multiply
   108,499.14x = 149,731.47 × 60,762.20
4. Step 4: Simplify right side
   108,499.14x = 9,098,012,777.78
5. Step 5: Solve for x
   x = 9,098,012,777.78/108,499.14
6. Step 6: Final answer
   x = 83,853.32