Finding the Fourth Proportional to 21,501.76, 32,256.42 and 9,816.16

Step by Step Solution

1. Step 1: Write the proportion equation
   21,501.76 : 32,256.42 = 9,816.16 : x
2. Step 2: Convert to fraction form
   21,501.76/32,256.42 = 9,816.16/x
3. Step 3: Cross multiply
   21,501.76x = 32,256.42 × 9,816.16
4. Step 4: Simplify right side
   21,501.76x = 316,633,969.38
5. Step 5: Solve for x
   x = 316,633,969.38/21,501.76
6. Step 6: Final answer
   x = 14,725.96