Finding the Fourth Proportional to 78,382.93, 108,168.78 and 42,573.55

Step by Step Solution

1. Step 1: Write the proportion equation
   78,382.93 : 108,168.78 = 42,573.55 : x
2. Step 2: Convert to fraction form
   78,382.93/108,168.78 = 42,573.55/x
3. Step 3: Cross multiply
   78,382.93x = 108,168.78 × 42,573.55
4. Step 4: Simplify right side
   78,382.93x = 4,605,128,963.77
5. Step 5: Solve for x
   x = 4,605,128,963.77/78,382.93
6. Step 6: Final answer
   x = 58,751.68