Finding the Fourth Proportional to 78,601.71, 108,472.63 and 42,792.33

Step by Step Solution

1. Step 1: Write the proportion equation
   78,601.71 : 108,472.63 = 42,792.33 : x
2. Step 2: Convert to fraction form
   78,601.71/108,472.63 = 42,792.33/x
3. Step 3: Cross multiply
   78,601.71x = 108,472.63 × 42,792.33
4. Step 4: Simplify right side
   78,601.71x = 4,641,796,578.93
5. Step 5: Solve for x
   x = 4,641,796,578.93/78,601.71
6. Step 6: Final answer
   x = 59,054.65