Finding the Fourth Proportional to 13,417.51, 18,515.82 and 7,448.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,417.51 : 18,515.82 = 7,448.98 : x
2. Step 2: Convert to fraction form
   13,417.51/18,515.82 = 7,448.98/x
3. Step 3: Cross multiply
   13,417.51x = 18,515.82 × 7,448.98
4. Step 4: Simplify right side
   13,417.51x = 137,923,972.86
5. Step 5: Solve for x
   x = 137,923,972.86/13,417.51
6. Step 6: Final answer
   x = 10,279.40