Finding the Fourth Proportional to 11,100.11, 15,317.10 and 7,507.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,100.11 : 15,317.10 = 7,507.76 : x
2. Step 2: Convert to fraction form
   11,100.11/15,317.10 = 7,507.76/x
3. Step 3: Cross multiply
   11,100.11x = 15,317.10 × 7,507.76
4. Step 4: Simplify right side
   11,100.11x = 114,997,034.11
5. Step 5: Solve for x
   x = 114,997,034.11/11,100.11
6. Step 6: Final answer
   x = 10,360.00