Finding the Fourth Proportional to 9,807.31, 13,533.72 and 5,330.97

Step by Step Solution

1. Step 1: Write the proportion equation
   9,807.31 : 13,533.72 = 5,330.97 : x
2. Step 2: Convert to fraction form
   9,807.31/13,533.72 = 5,330.97/x
3. Step 3: Cross multiply
   9,807.31x = 13,533.72 × 5,330.97
4. Step 4: Simplify right side
   9,807.31x = 72,147,835.32
5. Step 5: Solve for x
   x = 72,147,835.32/9,807.31
6. Step 6: Final answer
   x = 7,356.54