Finding the Fourth Proportional to 7,200.18, 9,910.47 and 5,100.66

Step by Step Solution

1. Step 1: Write the proportion equation
   7,200.18 : 9,910.47 = 5,100.66 : x
2. Step 2: Convert to fraction form
   7,200.18/9,910.47 = 5,100.66/x
3. Step 3: Cross multiply
   7,200.18x = 9,910.47 × 5,100.66
4. Step 4: Simplify right side
   7,200.18x = 50,549,937.91
5. Step 5: Solve for x
   x = 50,549,937.91/7,200.18
6. Step 6: Final answer
   x = 7,020.65