Finding the Fourth Proportional to 43,185.96, 59,208.17 and 42,398.76

Step by Step Solution

1. Step 1: Write the proportion equation
   43,185.96 : 59,208.17 = 42,398.76 : x
2. Step 2: Convert to fraction form
   43,185.96/59,208.17 = 42,398.76/x
3. Step 3: Cross multiply
   43,185.96x = 59,208.17 × 42,398.76
4. Step 4: Simplify right side
   43,185.96x = 2,510,352,989.87
5. Step 5: Solve for x
   x = 2,510,352,989.87/43,185.96
6. Step 6: Final answer
   x = 58,128.91