Finding the Fourth Proportional to 9,310.71, 12,848.91 and 5,061.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,310.71 : 12,848.91 = 5,061.76 : x
2. Step 2: Convert to fraction form
   9,310.71/12,848.91 = 5,061.76/x
3. Step 3: Cross multiply
   9,310.71x = 12,848.91 × 5,061.76
4. Step 4: Simplify right side
   9,310.71x = 65,038,098.68
5. Step 5: Solve for x
   x = 65,038,098.68/9,310.71
6. Step 6: Final answer
   x = 6,985.30