Finding the Fourth Proportional to 12,003.32, 16,561.24 and 7,754.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,003.32 : 16,561.24 = 7,754.56 : x
2. Step 2: Convert to fraction form
   12,003.32/16,561.24 = 7,754.56/x
3. Step 3: Cross multiply
   12,003.32x = 16,561.24 × 7,754.56
4. Step 4: Simplify right side
   12,003.32x = 128,425,129.25
5. Step 5: Solve for x
   x = 128,425,129.25/12,003.32
6. Step 6: Final answer
   x = 10,699.13