Finding the Fourth Proportional to 11,210.91, 15,467.81 and 7,234.35

Step by Step Solution

1. Step 1: Write the proportion equation
   11,210.91 : 15,467.81 = 7,234.35 : x
2. Step 2: Convert to fraction form
   11,210.91/15,467.81 = 7,234.35/x
3. Step 3: Cross multiply
   11,210.91x = 15,467.81 × 7,234.35
4. Step 4: Simplify right side
   11,210.91x = 111,899,515.10
5. Step 5: Solve for x
   x = 111,899,515.10/11,210.91
6. Step 6: Final answer
   x = 9,981.31