Finding the Fourth Proportional to 43,026.10, 59,343.16 and 31,128.82

Step by Step Solution

1. Step 1: Write the proportion equation
   43,026.10 : 59,343.16 = 31,128.82 : x
2. Step 2: Convert to fraction form
   43,026.10/59,343.16 = 31,128.82/x
3. Step 3: Cross multiply
   43,026.10x = 59,343.16 × 31,128.82
4. Step 4: Simplify right side
   43,026.10x = 1,847,282,545.87
5. Step 5: Solve for x
   x = 1,847,282,545.87/43,026.10
6. Step 6: Final answer
   x = 42,934.00