Finding the Fourth Proportional to 31,279.22, 43,165.32 and 17,132.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,279.22 : 43,165.32 = 17,132.57 : x
2. Step 2: Convert to fraction form
   31,279.22/43,165.32 = 17,132.57/x
3. Step 3: Cross multiply
   31,279.22x = 43,165.32 × 17,132.57
4. Step 4: Simplify right side
   31,279.22x = 739,532,876.76
5. Step 5: Solve for x
   x = 739,532,876.76/31,279.22
6. Step 6: Final answer
   x = 23,642.95