Finding the Fourth Proportional to 9,807.89, 13,534.56 and 5,331.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,807.89 : 13,534.56 = 5,331.56 : x
2. Step 2: Convert to fraction form
   9,807.89/13,534.56 = 5,331.56/x
3. Step 3: Cross multiply
   9,807.89x = 13,534.56 × 5,331.56
4. Step 4: Simplify right side
   9,807.89x = 72,160,318.71
5. Step 5: Solve for x
   x = 72,160,318.71/9,807.89
6. Step 6: Final answer
   x = 7,357.37