Finding the Fourth Proportional to 5,549.72, 8,312.22 and 5,117.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,549.72 : 8,312.22 = 5,117.56 : x
2. Step 2: Convert to fraction form
   5,549.72/8,312.22 = 5,117.56/x
3. Step 3: Cross multiply
   5,549.72x = 8,312.22 × 5,117.56
4. Step 4: Simplify right side
   5,549.72x = 42,538,263.80
5. Step 5: Solve for x
   x = 42,538,263.80/5,549.72
6. Step 6: Final answer
   x = 7,664.95