Finding the Fourth Proportional to 31,417.50, 43,356.24 and 17,988.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,417.50 : 43,356.24 = 17,988.96 : x
2. Step 2: Convert to fraction form
   31,417.50/43,356.24 = 17,988.96/x
3. Step 3: Cross multiply
   31,417.50x = 43,356.24 × 17,988.96
4. Step 4: Simplify right side
   31,417.50x = 779,933,667.11
5. Step 5: Solve for x
   x = 779,933,667.11/31,417.50
6. Step 6: Final answer
   x = 24,824.82