Finding the Fourth Proportional to 78,658.26, 108,549.59 and 42,848.25

Step by Step Solution

1. Step 1: Write the proportion equation
   78,658.26 : 108,549.59 = 42,848.25 : x
2. Step 2: Convert to fraction form
   78,658.26/108,549.59 = 42,848.25/x
3. Step 3: Cross multiply
   78,658.26x = 108,549.59 × 42,848.25
4. Step 4: Simplify right side
   78,658.26x = 4,651,159,755.48
5. Step 5: Solve for x
   x = 4,651,159,755.48/78,658.26
6. Step 6: Final answer
   x = 59,131.23