Finding the Fourth Proportional to 13,061.96, 18,014.40 and 8,812.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,061.96 : 18,014.40 = 8,812.34 : x
2. Step 2: Convert to fraction form
   13,061.96/18,014.40 = 8,812.34/x
3. Step 3: Cross multiply
   13,061.96x = 18,014.40 × 8,812.34
4. Step 4: Simplify right side
   13,061.96x = 158,748,995.18
5. Step 5: Solve for x
   x = 158,748,995.18/13,061.96
6. Step 6: Final answer
   x = 12,153.54