Finding the Fourth Proportional to 78,384.72, 108,167.84 and 42,573.92

Step by Step Solution

1. Step 1: Write the proportion equation
   78,384.72 : 108,167.84 = 42,573.92 : x
2. Step 2: Convert to fraction form
   78,384.72/108,167.84 = 42,573.92/x
3. Step 3: Cross multiply
   78,384.72x = 108,167.84 × 42,573.92
4. Step 4: Simplify right side
   78,384.72x = 4,605,128,966.73
5. Step 5: Solve for x
   x = 4,605,128,966.73/78,384.72
6. Step 6: Final answer
   x = 58,750.34