Finding the Fourth Proportional to 10,248.89, 14,141.00 and 7,861.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,248.89 : 14,141.00 = 7,861.28 : x
2. Step 2: Convert to fraction form
   10,248.89/14,141.00 = 7,861.28/x
3. Step 3: Cross multiply
   10,248.89x = 14,141.00 × 7,861.28
4. Step 4: Simplify right side
   10,248.89x = 111,166,321.17
5. Step 5: Solve for x
   x = 111,166,321.17/10,248.89
6. Step 6: Final answer
   x = 10,846.67