Finding the Fourth Proportional to 13,061.19, 18,029.58 and 8,814.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,061.19 : 18,029.58 = 8,814.75 : x
2. Step 2: Convert to fraction form
   13,061.19/18,029.58 = 8,814.75/x
3. Step 3: Cross multiply
   13,061.19x = 18,029.58 × 8,814.75
4. Step 4: Simplify right side
   13,061.19x = 158,926,240.31
5. Step 5: Solve for x
   x = 158,926,240.31/13,061.19
6. Step 6: Final answer
   x = 12,167.82