Finding the Fourth Proportional to 64,592.28, 89,144.69 and 40,717.53

Step by Step Solution

1. Step 1: Write the proportion equation
   64,592.28 : 89,144.69 = 40,717.53 : x
2. Step 2: Convert to fraction form
   64,592.28/89,144.69 = 40,717.53/x
3. Step 3: Cross multiply
   64,592.28x = 89,144.69 × 40,717.53
4. Step 4: Simplify right side
   64,592.28x = 3,629,751,385.83
5. Step 5: Solve for x
   x = 3,629,751,385.83/64,592.28
6. Step 6: Final answer
   x = 56,194.82