Finding the Fourth Proportional to 78,602.56, 108,468.15 and 42,792.73

Step by Step Solution

1. Step 1: Write the proportion equation
   78,602.56 : 108,468.15 = 42,792.73 : x
2. Step 2: Convert to fraction form
   78,602.56/108,468.15 = 42,792.73/x
3. Step 3: Cross multiply
   78,602.56x = 108,468.15 × 42,792.73
4. Step 4: Simplify right side
   78,602.56x = 4,641,648,256.55
5. Step 5: Solve for x
   x = 4,641,648,256.55/78,602.56
6. Step 6: Final answer
   x = 59,052.13