Finding the Fourth Proportional to 21,550.61, 32,315.50 and 7,510.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,550.61 : 32,315.50 = 7,510.31 : x
2. Step 2: Convert to fraction form
   21,550.61/32,315.50 = 7,510.31/x
3. Step 3: Cross multiply
   21,550.61x = 32,315.50 × 7,510.31
4. Step 4: Simplify right side
   21,550.61x = 242,699,242.45
5. Step 5: Solve for x
   x = 242,699,242.45/21,550.61
6. Step 6: Final answer
   x = 11,261.83