Finding the Fourth Proportional to 7,002.18, 10,505.16 and 2,071.98

Step by Step Solution

1. Step 1: Write the proportion equation
   7,002.18 : 10,505.16 = 2,071.98 : x
2. Step 2: Convert to fraction form
   7,002.18/10,505.16 = 2,071.98/x
3. Step 3: Cross multiply
   7,002.18x = 10,505.16 × 2,071.98
4. Step 4: Simplify right side
   7,002.18x = 21,766,481.42
5. Step 5: Solve for x
   x = 21,766,481.42/7,002.18
6. Step 6: Final answer
   x = 3,108.53