Finding the Fourth Proportional to 21,614.72, 32,402.64 and 7,760.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,614.72 : 32,402.64 = 7,760.48 : x
2. Step 2: Convert to fraction form
   21,614.72/32,402.64 = 7,760.48/x
3. Step 3: Cross multiply
   21,614.72x = 32,402.64 × 7,760.48
4. Step 4: Simplify right side
   21,614.72x = 251,460,039.67
5. Step 5: Solve for x
   x = 251,460,039.67/21,614.72
6. Step 6: Final answer
   x = 11,633.74