Finding the Fourth Proportional to 5,705.27, 7,876.98 and 5,106.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,705.27 : 7,876.98 = 5,106.72 : x
2. Step 2: Convert to fraction form
   5,705.27/7,876.98 = 5,106.72/x
3. Step 3: Cross multiply
   5,705.27x = 7,876.98 × 5,106.72
4. Step 4: Simplify right side
   5,705.27x = 40,225,531.31
5. Step 5: Solve for x
   x = 40,225,531.31/5,705.27
6. Step 6: Final answer
   x = 7,050.60