Finding the Fourth Proportional to 10,789.02, 14,890.50 and 7,818.35

Step by Step Solution

1. Step 1: Write the proportion equation
   10,789.02 : 14,890.50 = 7,818.35 : x
2. Step 2: Convert to fraction form
   10,789.02/14,890.50 = 7,818.35/x
3. Step 3: Cross multiply
   10,789.02x = 14,890.50 × 7,818.35
4. Step 4: Simplify right side
   10,789.02x = 116,419,066.22
5. Step 5: Solve for x
   x = 116,419,066.22/10,789.02
6. Step 6: Final answer
   x = 10,790.51