Finding the Fourth Proportional to 7,002.77, 10,505.16 and 2,071.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,002.77 : 10,505.16 = 2,071.76 : x
2. Step 2: Convert to fraction form
   7,002.77/10,505.16 = 2,071.76/x
3. Step 3: Cross multiply
   7,002.77x = 10,505.16 × 2,071.76
4. Step 4: Simplify right side
   7,002.77x = 21,764,117.76
5. Step 5: Solve for x
   x = 21,764,117.76/7,002.77
6. Step 6: Final answer
   x = 3,107.93