Finding the Fourth Proportional to 22,118.31, 33,181.52 and 7,328.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,118.31 : 33,181.52 = 7,328.12 : x
2. Step 2: Convert to fraction form
   22,118.31/33,181.52 = 7,328.12/x
3. Step 3: Cross multiply
   22,118.31x = 33,181.52 × 7,328.12
4. Step 4: Simplify right side
   22,118.31x = 243,157,957.79
5. Step 5: Solve for x
   x = 243,157,957.79/22,118.31
6. Step 6: Final answer
   x = 10,993.51