Finding the Fourth Proportional to 64,468.80, 96,812.25 and 42,017.61

Step by Step Solution

1. Step 1: Write the proportion equation
   64,468.80 : 96,812.25 = 42,017.61 : x
2. Step 2: Convert to fraction form
   64,468.80/96,812.25 = 42,017.61/x
3. Step 3: Cross multiply
   64,468.80x = 96,812.25 × 42,017.61
4. Step 4: Simplify right side
   64,468.80x = 4,067,819,363.72
5. Step 5: Solve for x
   x = 4,067,819,363.72/64,468.80
6. Step 6: Final answer
   x = 63,097.49