Finding the Fourth Proportional to 78,150.80, 107,847.96 and 42,341.70

Step by Step Solution

1. Step 1: Write the proportion equation
   78,150.80 : 107,847.96 = 42,341.70 : x
2. Step 2: Convert to fraction form
   78,150.80/107,847.96 = 42,341.70/x
3. Step 3: Cross multiply
   78,150.80x = 107,847.96 × 42,341.70
4. Step 4: Simplify right side
   78,150.80x = 4,566,465,967.93
5. Step 5: Solve for x
   x = 4,566,465,967.93/78,150.80
6. Step 6: Final answer
   x = 58,431.47