Finding the Fourth Proportional to 60,449.30, 84,716.50 and 60,449.30

Step by Step Solution

1. Step 1: Write the proportion equation
   60,449.30 : 84,716.50 = 60,449.30 : x
2. Step 2: Convert to fraction form
   60,449.30/84,716.50 = 60,449.30/x
3. Step 3: Cross multiply
   60,449.30x = 84,716.50 × 60,449.30
4. Step 4: Simplify right side
   60,449.30x = 5,121,053,123.45
5. Step 5: Solve for x
   x = 5,121,053,123.45/60,449.30
6. Step 6: Final answer
   x = 84,716.50