Finding the Fourth Proportional to 64,781.16, 89,420.32 and 37,932.28

Step by Step Solution

1. Step 1: Write the proportion equation
   64,781.16 : 89,420.32 = 37,932.28 : x
2. Step 2: Convert to fraction form
   64,781.16/89,420.32 = 37,932.28/x
3. Step 3: Cross multiply
   64,781.16x = 89,420.32 × 37,932.28
4. Step 4: Simplify right side
   64,781.16x = 3,391,916,615.93
5. Step 5: Solve for x
   x = 3,391,916,615.93/64,781.16
6. Step 6: Final answer
   x = 52,359.62