Finding the Fourth Proportional to 31,280.85, 43,168.14 and 17,132.79

Step by Step Solution

1. Step 1: Write the proportion equation
   31,280.85 : 43,168.14 = 17,132.79 : x
2. Step 2: Convert to fraction form
   31,280.85/43,168.14 = 17,132.79/x
3. Step 3: Cross multiply
   31,280.85x = 43,168.14 × 17,132.79
4. Step 4: Simplify right side
   31,280.85x = 739,590,677.31
5. Step 5: Solve for x
   x = 739,590,677.31/31,280.85
6. Step 6: Final answer
   x = 23,643.56