Finding the Fourth Proportional to 11,085.38, 15,300.33 and 7,550

Step by Step Solution

1. Step 1: Write the proportion equation
   11,085.38 : 15,300.33 = 7,550 : x
2. Step 2: Convert to fraction form
   11,085.38/15,300.33 = 7,550/x
3. Step 3: Cross multiply
   11,085.38x = 15,300.33 × 7,550
4. Step 4: Simplify right side
   11,085.38x = 115,517,491.50
5. Step 5: Solve for x
   x = 115,517,491.50/11,085.38
6. Step 6: Final answer
   x = 10,420.71