Finding the Fourth Proportional to 9,807.87, 13,534.52 and 5,615.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,807.87 : 13,534.52 = 5,615.31 : x
2. Step 2: Convert to fraction form
   9,807.87/13,534.52 = 5,615.31/x
3. Step 3: Cross multiply
   9,807.87x = 13,534.52 × 5,615.31
4. Step 4: Simplify right side
   9,807.87x = 76,000,457.83
5. Step 5: Solve for x
   x = 76,000,457.83/9,807.87
6. Step 6: Final answer
   x = 7,748.93