Finding the Fourth Proportional to 9,062.51, 12,499.79 and 7,865.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,062.51 : 12,499.79 = 7,865.73 : x
2. Step 2: Convert to fraction form
   9,062.51/12,499.79 = 7,865.73/x
3. Step 3: Cross multiply
   9,062.51x = 12,499.79 × 7,865.73
4. Step 4: Simplify right side
   9,062.51x = 98,319,933.87
5. Step 5: Solve for x
   x = 98,319,933.87/9,062.51
6. Step 6: Final answer
   x = 10,849.09