Finding the Fourth Proportional to 10,051.20, 13,872.06 and 8,370.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,051.20 : 13,872.06 = 8,370.18 : x
2. Step 2: Convert to fraction form
   10,051.20/13,872.06 = 8,370.18/x
3. Step 3: Cross multiply
   10,051.20x = 13,872.06 × 8,370.18
4. Step 4: Simplify right side
   10,051.20x = 116,111,639.17
5. Step 5: Solve for x
   x = 116,111,639.17/10,051.20
6. Step 6: Final answer
   x = 11,552.02