Finding the Fourth Proportional to 11,168.28, 15,407.82 and 7,810.02

Step by Step Solution

1. Step 1: Write the proportion equation
   11,168.28 : 15,407.82 = 7,810.02 : x
2. Step 2: Convert to fraction form
   11,168.28/15,407.82 = 7,810.02/x
3. Step 3: Cross multiply
   11,168.28x = 15,407.82 × 7,810.02
4. Step 4: Simplify right side
   11,168.28x = 120,335,382.36
5. Step 5: Solve for x
   x = 120,335,382.36/11,168.28
6. Step 6: Final answer
   x = 10,774.75