Finding the Fourth Proportional to 60,978.32, 91,472.96 and 16,605.28

Step by Step Solution

1. Step 1: Write the proportion equation
   60,978.32 : 91,472.96 = 16,605.28 : x
2. Step 2: Convert to fraction form
   60,978.32/91,472.96 = 16,605.28/x
3. Step 3: Cross multiply
   60,978.32x = 91,472.96 × 16,605.28
4. Step 4: Simplify right side
   60,978.32x = 1,518,934,113.23
5. Step 5: Solve for x
   x = 1,518,934,113.23/60,978.32
6. Step 6: Final answer
   x = 24,909.41