Finding the Fourth Proportional to 11,188.95, 15,441.56 and 7,405.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,188.95 : 15,441.56 = 7,405.52 : x
2. Step 2: Convert to fraction form
   11,188.95/15,441.56 = 7,405.52/x
3. Step 3: Cross multiply
   11,188.95x = 15,441.56 × 7,405.52
4. Step 4: Simplify right side
   11,188.95x = 114,352,667.18
5. Step 5: Solve for x
   x = 114,352,667.18/11,188.95
6. Step 6: Final answer
   x = 10,220.14