Finding the Fourth Proportional to 12,424.51, 17,149.89 and 7,954.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,424.51 : 17,149.89 = 7,954.93 : x
2. Step 2: Convert to fraction form
   12,424.51/17,149.89 = 7,954.93/x
3. Step 3: Cross multiply
   12,424.51x = 17,149.89 × 7,954.93
4. Step 4: Simplify right side
   12,424.51x = 136,426,174.46
5. Step 5: Solve for x
   x = 136,426,174.46/12,424.51
6. Step 6: Final answer
   x = 10,980.41