Finding the Fourth Proportional to 78,602.72, 108,474.02 and 42,793.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,602.72 : 108,474.02 = 42,793.34 : x
2. Step 2: Convert to fraction form
   78,602.72/108,474.02 = 42,793.34/x
3. Step 3: Cross multiply
   78,602.72x = 108,474.02 × 42,793.34
4. Step 4: Simplify right side
   78,602.72x = 4,641,964,862.69
5. Step 5: Solve for x
   x = 4,641,964,862.69/78,602.72
6. Step 6: Final answer
   x = 59,056.04