Finding the Fourth Proportional to 12,535.31, 17,303.22 and 8,553.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,535.31 : 17,303.22 = 8,553.58 : x
2. Step 2: Convert to fraction form
   12,535.31/17,303.22 = 8,553.58/x
3. Step 3: Cross multiply
   12,535.31x = 17,303.22 × 8,553.58
4. Step 4: Simplify right side
   12,535.31x = 148,004,433.27
5. Step 5: Solve for x
   x = 148,004,433.27/12,535.31
6. Step 6: Final answer
   x = 11,807.00