Finding the Fourth Proportional to 11,034.72, 15,221.79 and 7,258.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,034.72 : 15,221.79 = 7,258.50 : x
2. Step 2: Convert to fraction form
   11,034.72/15,221.79 = 7,258.50/x
3. Step 3: Cross multiply
   11,034.72x = 15,221.79 × 7,258.50
4. Step 4: Simplify right side
   11,034.72x = 110,487,362.72
5. Step 5: Solve for x
   x = 110,487,362.72/11,034.72
6. Step 6: Final answer
   x = 10,012.70