Finding the Fourth Proportional to 31,158.59, 42,998.63 and 17,011.43

Step by Step Solution

1. Step 1: Write the proportion equation
   31,158.59 : 42,998.63 = 17,011.43 : x
2. Step 2: Convert to fraction form
   31,158.59/42,998.63 = 17,011.43/x
3. Step 3: Cross multiply
   31,158.59x = 42,998.63 × 17,011.43
4. Step 4: Simplify right side
   31,158.59x = 731,468,334.37
5. Step 5: Solve for x
   x = 731,468,334.37/31,158.59
6. Step 6: Final answer
   x = 23,475.66