Finding the Fourth Proportional to 78,150.78, 107,847.90 and 42,341.76

Step by Step Solution

1. Step 1: Write the proportion equation
   78,150.78 : 107,847.90 = 42,341.76 : x
2. Step 2: Convert to fraction form
   78,150.78/107,847.90 = 42,341.76/x
3. Step 3: Cross multiply
   78,150.78x = 107,847.90 × 42,341.76
4. Step 4: Simplify right side
   78,150.78x = 4,566,469,898.30
5. Step 5: Solve for x
   x = 4,566,469,898.30/78,150.78
6. Step 6: Final answer
   x = 58,431.53