Finding the Fourth Proportional to 13,259.46, 18,297.89 and 7,291.08

Step by Step Solution

1. Step 1: Write the proportion equation
   13,259.46 : 18,297.89 = 7,291.08 : x
2. Step 2: Convert to fraction form
   13,259.46/18,297.89 = 7,291.08/x
3. Step 3: Cross multiply
   13,259.46x = 18,297.89 × 7,291.08
4. Step 4: Simplify right side
   13,259.46x = 133,411,379.82
5. Step 5: Solve for x
   x = 133,411,379.82/13,259.46
6. Step 6: Final answer
   x = 10,061.60