Finding the Fourth Proportional to 75,685.50, 104,449.24 and 42,151.50

Step by Step Solution

1. Step 1: Write the proportion equation
   75,685.50 : 104,449.24 = 42,151.50 : x
2. Step 2: Convert to fraction form
   75,685.50/104,449.24 = 42,151.50/x
3. Step 3: Cross multiply
   75,685.50x = 104,449.24 × 42,151.50
4. Step 4: Simplify right side
   75,685.50x = 4,402,692,139.86
5. Step 5: Solve for x
   x = 4,402,692,139.86/75,685.50
6. Step 6: Final answer
   x = 58,170.88