Finding the Fourth Proportional to 31,543.76, 43,530.42 and 17,203.61

Step by Step Solution

1. Step 1: Write the proportion equation
   31,543.76 : 43,530.42 = 17,203.61 : x
2. Step 2: Convert to fraction form
   31,543.76/43,530.42 = 17,203.61/x
3. Step 3: Cross multiply
   31,543.76x = 43,530.42 × 17,203.61
4. Step 4: Simplify right side
   31,543.76x = 748,880,151.16
5. Step 5: Solve for x
   x = 748,880,151.16/31,543.76
6. Step 6: Final answer
   x = 23,741.00