Finding the Fourth Proportional to 21,696.27, 32,531.76 and 10,591.71

Step by Step Solution

1. Step 1: Write the proportion equation
   21,696.27 : 32,531.76 = 10,591.71 : x
2. Step 2: Convert to fraction form
   21,696.27/32,531.76 = 10,591.71/x
3. Step 3: Cross multiply
   21,696.27x = 32,531.76 × 10,591.71
4. Step 4: Simplify right side
   21,696.27x = 344,567,088.76
5. Step 5: Solve for x
   x = 344,567,088.76/21,696.27
6. Step 6: Final answer
   x = 15,881.40