Finding the Fourth Proportional to 7,298.30, 10,931.03 and 5,116.77

Step by Step Solution

1. Step 1: Write the proportion equation
   7,298.30 : 10,931.03 = 5,116.77 : x
2. Step 2: Convert to fraction form
   7,298.30/10,931.03 = 5,116.77/x
3. Step 3: Cross multiply
   7,298.30x = 10,931.03 × 5,116.77
4. Step 4: Simplify right side
   7,298.30x = 55,931,540.79
5. Step 5: Solve for x
   x = 55,931,540.79/7,298.30
6. Step 6: Final answer
   x = 7,663.64