Finding the Fourth Proportional to 8,861.83, 13,227.89 and 7,810.93

Step by Step Solution

1. Step 1: Write the proportion equation
   8,861.83 : 13,227.89 = 7,810.93 : x
2. Step 2: Convert to fraction form
   8,861.83/13,227.89 = 7,810.93/x
3. Step 3: Cross multiply
   8,861.83x = 13,227.89 × 7,810.93
4. Step 4: Simplify right side
   8,861.83x = 103,322,177.21
5. Step 5: Solve for x
   x = 103,322,177.21/8,861.83
6. Step 6: Final answer
   x = 11,659.24