Finding the Fourth Proportional to 78,382.38, 108,168.47 and 42,573.09

Step by Step Solution

1. Step 1: Write the proportion equation
   78,382.38 : 108,168.47 = 42,573.09 : x
2. Step 2: Convert to fraction form
   78,382.38/108,168.47 = 42,573.09/x
3. Step 3: Cross multiply
   78,382.38x = 108,168.47 × 42,573.09
4. Step 4: Simplify right side
   78,382.38x = 4,605,065,795.61
5. Step 5: Solve for x
   x = 4,605,065,795.61/78,382.38
6. Step 6: Final answer
   x = 58,751.29