Finding the Fourth Proportional to 11,820.28, 16,312.50 and 7,575.04

Step by Step Solution

1. Step 1: Write the proportion equation
   11,820.28 : 16,312.50 = 7,575.04 : x
2. Step 2: Convert to fraction form
   11,820.28/16,312.50 = 7,575.04/x
3. Step 3: Cross multiply
   11,820.28x = 16,312.50 × 7,575.04
4. Step 4: Simplify right side
   11,820.28x = 123,567,840
5. Step 5: Solve for x
   x = 123,567,840/11,820.28
6. Step 6: Final answer
   x = 10,453.88