Finding the Fourth Proportional to 78,151.50, 107,849.12 and 42,341.76

Step by Step Solution

1. Step 1: Write the proportion equation
   78,151.50 : 107,849.12 = 42,341.76 : x
2. Step 2: Convert to fraction form
   78,151.50/107,849.12 = 42,341.76/x
3. Step 3: Cross multiply
   78,151.50x = 107,849.12 × 42,341.76
4. Step 4: Simplify right side
   78,151.50x = 4,566,521,343.54
5. Step 5: Solve for x
   x = 4,566,521,343.54/78,151.50
6. Step 6: Final answer
   x = 58,431.65