Finding the Fourth Proportional to 9,807.12, 13,530.78 and 5,614.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,807.12 : 13,530.78 = 5,614.56 : x
2. Step 2: Convert to fraction form
   9,807.12/13,530.78 = 5,614.56/x
3. Step 3: Cross multiply
   9,807.12x = 13,530.78 × 5,614.56
4. Step 4: Simplify right side
   9,807.12x = 75,969,376.16
5. Step 5: Solve for x
   x = 75,969,376.16/9,807.12
6. Step 6: Final answer
   x = 7,746.35