Finding the Fourth Proportional to 7,870.98, 10,861.56 and 5,076.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,870.98 : 10,861.56 = 5,076.48 : x
2. Step 2: Convert to fraction form
   7,870.98/10,861.56 = 5,076.48/x
3. Step 3: Cross multiply
   7,870.98x = 10,861.56 × 5,076.48
4. Step 4: Simplify right side
   7,870.98x = 55,138,492.11
5. Step 5: Solve for x
   x = 55,138,492.11/7,870.98
6. Step 6: Final answer
   x = 7,005.29