Finding the Fourth Proportional to 59,309.42, 81,761.86 and 42,284.13

Step by Step Solution

1. Step 1: Write the proportion equation
   59,309.42 : 81,761.86 = 42,284.13 : x
2. Step 2: Convert to fraction form
   59,309.42/81,761.86 = 42,284.13/x
3. Step 3: Cross multiply
   59,309.42x = 81,761.86 × 42,284.13
4. Step 4: Simplify right side
   59,309.42x = 3,457,228,625.68
5. Step 5: Solve for x
   x = 3,457,228,625.68/59,309.42
6. Step 6: Final answer
   x = 58,291.40