Finding the Fourth Proportional to 10,130.28, 13,980.84 and 5,655.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,130.28 : 13,980.84 = 5,655.57 : x
2. Step 2: Convert to fraction form
   10,130.28/13,980.84 = 5,655.57/x
3. Step 3: Cross multiply
   10,130.28x = 13,980.84 × 5,655.57
4. Step 4: Simplify right side
   10,130.28x = 79,069,619.28
5. Step 5: Solve for x
   x = 79,069,619.28/10,130.28
6. Step 6: Final answer
   x = 7,805.27