Finding the Fourth Proportional to 11,736.16, 17,601.12 and 5,160.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,736.16 : 17,601.12 = 5,160.88 : x
2. Step 2: Convert to fraction form
   11,736.16/17,601.12 = 5,160.88/x
3. Step 3: Cross multiply
   11,736.16x = 17,601.12 × 5,160.88
4. Step 4: Simplify right side
   11,736.16x = 90,837,268.19
5. Step 5: Solve for x
   x = 90,837,268.19/11,736.16
6. Step 6: Final answer
   x = 7,739.95