Finding the Fourth Proportional to 13,259.72, 18,298.24 and 7,291.33

Step by Step Solution

1. Step 1: Write the proportion equation
   13,259.72 : 18,298.24 = 7,291.33 : x
2. Step 2: Convert to fraction form
   13,259.72/18,298.24 = 7,291.33/x
3. Step 3: Cross multiply
   13,259.72x = 18,298.24 × 7,291.33
4. Step 4: Simplify right side
   13,259.72x = 133,418,442.29
5. Step 5: Solve for x
   x = 133,418,442.29/13,259.72
6. Step 6: Final answer
   x = 10,061.94