Finding the Fourth Proportional to 78,602.07, 108,470.67 and 42,792.33

Step by Step Solution

1. Step 1: Write the proportion equation
   78,602.07 : 108,470.67 = 42,792.33 : x
2. Step 2: Convert to fraction form
   78,602.07/108,470.67 = 42,792.33/x
3. Step 3: Cross multiply
   78,602.07x = 108,470.67 × 42,792.33
4. Step 4: Simplify right side
   78,602.07x = 4,641,712,705.96
5. Step 5: Solve for x
   x = 4,641,712,705.96/78,602.07
6. Step 6: Final answer
   x = 59,053.31