Finding the Fourth Proportional to 11,087.72, 15,296.15 and 7,501.40

Step by Step Solution

1. Step 1: Write the proportion equation
   11,087.72 : 15,296.15 = 7,501.40 : x
2. Step 2: Convert to fraction form
   11,087.72/15,296.15 = 7,501.40/x
3. Step 3: Cross multiply
   11,087.72x = 15,296.15 × 7,501.40
4. Step 4: Simplify right side
   11,087.72x = 114,742,539.61
5. Step 5: Solve for x
   x = 114,742,539.61/11,087.72
6. Step 6: Final answer
   x = 10,348.61