Finding the Fourth Proportional to 12,950.01, 17,867.39 and 7,642.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,950.01 : 17,867.39 = 7,642.89 : x
2. Step 2: Convert to fraction form
   12,950.01/17,867.39 = 7,642.89/x
3. Step 3: Cross multiply
   12,950.01x = 17,867.39 × 7,642.89
4. Step 4: Simplify right side
   12,950.01x = 136,558,458.14
5. Step 5: Solve for x
   x = 136,558,458.14/12,950.01
6. Step 6: Final answer
   x = 10,545.05