Finding the Fourth Proportional to 7,499.79, 11,252.52 and 3,116.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,499.79 : 11,252.52 = 3,116.88 : x
2. Step 2: Convert to fraction form
   7,499.79/11,252.52 = 3,116.88/x
3. Step 3: Cross multiply
   7,499.79x = 11,252.52 × 3,116.88
4. Step 4: Simplify right side
   7,499.79x = 35,072,754.54
5. Step 5: Solve for x
   x = 35,072,754.54/7,499.79
6. Step 6: Final answer
   x = 4,676.50