Finding the Fourth Proportional to 78,657.48, 108,549.18 and 42,849.27

Step by Step Solution

1. Step 1: Write the proportion equation
   78,657.48 : 108,549.18 = 42,849.27 : x
2. Step 2: Convert to fraction form
   78,657.48/108,549.18 = 42,849.27/x
3. Step 3: Cross multiply
   78,657.48x = 108,549.18 × 42,849.27
4. Step 4: Simplify right side
   78,657.48x = 4,651,253,122.10
5. Step 5: Solve for x
   x = 4,651,253,122.10/78,657.48
6. Step 6: Final answer
   x = 59,133.00