Finding the Fourth Proportional to 21,707.19, 32,561.48 and 7,475.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,707.19 : 32,561.48 = 7,475.52 : x
2. Step 2: Convert to fraction form
   21,707.19/32,561.48 = 7,475.52/x
3. Step 3: Cross multiply
   21,707.19x = 32,561.48 × 7,475.52
4. Step 4: Simplify right side
   21,707.19x = 243,413,957.59
5. Step 5: Solve for x
   x = 243,413,957.59/21,707.19
6. Step 6: Final answer
   x = 11,213.52