Finding the Fourth Proportional to 11,196.51, 15,453.35 and 7,419.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,196.51 : 15,453.35 = 7,419.88 : x
2. Step 2: Convert to fraction form
   11,196.51/15,453.35 = 7,419.88/x
3. Step 3: Cross multiply
   11,196.51x = 15,453.35 × 7,419.88
4. Step 4: Simplify right side
   11,196.51x = 114,662,002.60
5. Step 5: Solve for x
   x = 114,662,002.60/11,196.51
6. Step 6: Final answer
   x = 10,240.87