Finding the Fourth Proportional to 31,402.17, 43,337.39 and 17,977.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,402.17 : 43,337.39 = 17,977.62 : x
2. Step 2: Convert to fraction form
   31,402.17/43,337.39 = 17,977.62/x
3. Step 3: Cross multiply
   31,402.17x = 43,337.39 × 17,977.62
4. Step 4: Simplify right side
   31,402.17x = 779,103,039.32
5. Step 5: Solve for x
   x = 779,103,039.32/31,402.17
6. Step 6: Final answer
   x = 24,810.48