Finding the Fourth Proportional to 11,979.28, 16,526.72 and 7,501.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,979.28 : 16,526.72 = 7,501.12 : x
2. Step 2: Convert to fraction form
   11,979.28/16,526.72 = 7,501.12/x
3. Step 3: Cross multiply
   11,979.28x = 16,526.72 × 7,501.12
4. Step 4: Simplify right side
   11,979.28x = 123,968,909.93
5. Step 5: Solve for x
   x = 123,968,909.93/11,979.28
6. Step 6: Final answer
   x = 10,348.61