Finding the Fourth Proportional to 12,758.65, 17,607.32 and 7,015.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,758.65 : 17,607.32 = 7,015.81 : x
2. Step 2: Convert to fraction form
   12,758.65/17,607.32 = 7,015.81/x
3. Step 3: Cross multiply
   12,758.65x = 17,607.32 × 7,015.81
4. Step 4: Simplify right side
   12,758.65x = 123,529,488.61
5. Step 5: Solve for x
   x = 123,529,488.61/12,758.65
6. Step 6: Final answer
   x = 9,682.02