Finding the Fourth Proportional to 21,561.29, 32,347.32 and 7,521.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,561.29 : 32,347.32 = 7,521.52 : x
2. Step 2: Convert to fraction form
   21,561.29/32,347.32 = 7,521.52/x
3. Step 3: Cross multiply
   21,561.29x = 32,347.32 × 7,521.52
4. Step 4: Simplify right side
   21,561.29x = 243,301,014.33
5. Step 5: Solve for x
   x = 243,301,014.33/21,561.29
6. Step 6: Final answer
   x = 11,284.16