Finding the Fourth Proportional to 12,657.51, 17,460.54 and 9,667.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,657.51 : 17,460.54 = 9,667.98 : x
2. Step 2: Convert to fraction form
   12,657.51/17,460.54 = 9,667.98/x
3. Step 3: Cross multiply
   12,657.51x = 17,460.54 × 9,667.98
4. Step 4: Simplify right side
   12,657.51x = 168,808,151.51
5. Step 5: Solve for x
   x = 168,808,151.51/12,657.51
6. Step 6: Final answer
   x = 13,336.60