Finding the Fourth Proportional to 11,091.48, 15,300.72 and 6,612.07

Step by Step Solution

1. Step 1: Write the proportion equation
   11,091.48 : 15,300.72 = 6,612.07 : x
2. Step 2: Convert to fraction form
   11,091.48/15,300.72 = 6,612.07/x
3. Step 3: Cross multiply
   11,091.48x = 15,300.72 × 6,612.07
4. Step 4: Simplify right side
   11,091.48x = 101,169,445.15
5. Step 5: Solve for x
   x = 101,169,445.15/11,091.48
6. Step 6: Final answer
   x = 9,121.37