Finding the Fourth Proportional to 11,300.69, 15,595.43 and 7,517.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,300.69 : 15,595.43 = 7,517.78 : x
2. Step 2: Convert to fraction form
   11,300.69/15,595.43 = 7,517.78/x
3. Step 3: Cross multiply
   11,300.69x = 15,595.43 × 7,517.78
4. Step 4: Simplify right side
   11,300.69x = 117,242,896.18
5. Step 5: Solve for x
   x = 117,242,896.18/11,300.69
6. Step 6: Final answer
   x = 10,374.85