Finding the Fourth Proportional to 10,856.04, 14,967.42 and 8,614.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,856.04 : 14,967.42 = 8,614.07 : x
2. Step 2: Convert to fraction form
   10,856.04/14,967.42 = 8,614.07/x
3. Step 3: Cross multiply
   10,856.04x = 14,967.42 × 8,614.07
4. Step 4: Simplify right side
   10,856.04x = 128,930,328.76
5. Step 5: Solve for x
   x = 128,930,328.76/10,856.04
6. Step 6: Final answer
   x = 11,876.37