Finding the Fourth Proportional to 11,258.19, 16,888.50 and 4,680.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,258.19 : 16,888.50 = 4,680.72 : x
2. Step 2: Convert to fraction form
   11,258.19/16,888.50 = 4,680.72/x
3. Step 3: Cross multiply
   11,258.19x = 16,888.50 × 4,680.72
4. Step 4: Simplify right side
   11,258.19x = 79,050,339.72
5. Step 5: Solve for x
   x = 79,050,339.72/11,258.19
6. Step 6: Final answer
   x = 7,021.59