Finding the Fourth Proportional to 7,026.86, 10,518.42 and 5,148.74

Step by Step Solution

1. Step 1: Write the proportion equation
   7,026.86 : 10,518.42 = 5,148.74 : x
2. Step 2: Convert to fraction form
   7,026.86/10,518.42 = 5,148.74/x
3. Step 3: Cross multiply
   7,026.86x = 10,518.42 × 5,148.74
4. Step 4: Simplify right side
   7,026.86x = 54,156,609.79
5. Step 5: Solve for x
   x = 54,156,609.79/7,026.86
6. Step 6: Final answer
   x = 7,707.09