Finding the Fourth Proportional to 62,949.96, 94,769.55 and 57,438.72

Step by Step Solution

1. Step 1: Write the proportion equation
   62,949.96 : 94,769.55 = 57,438.72 : x
2. Step 2: Convert to fraction form
   62,949.96/94,769.55 = 57,438.72/x
3. Step 3: Cross multiply
   62,949.96x = 94,769.55 × 57,438.72
4. Step 4: Simplify right side
   62,949.96x = 5,443,441,646.98
5. Step 5: Solve for x
   x = 5,443,441,646.98/62,949.96
6. Step 6: Final answer
   x = 86,472.52