Finding the Fourth Proportional to 78,158.88, 107,858.88 and 42,348.87

Step by Step Solution

1. Step 1: Write the proportion equation
   78,158.88 : 107,858.88 = 42,348.87 : x
2. Step 2: Convert to fraction form
   78,158.88/107,858.88 = 42,348.87/x
3. Step 3: Cross multiply
   78,158.88x = 107,858.88 × 42,348.87
4. Step 4: Simplify right side
   78,158.88x = 4,567,701,687.47
5. Step 5: Solve for x
   x = 4,567,701,687.47/78,158.88
6. Step 6: Final answer
   x = 58,441.24