Finding the Fourth Proportional to 12,584.68, 17,373.35 and 9,897.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,584.68 : 17,373.35 = 9,897.57 : x
2. Step 2: Convert to fraction form
   12,584.68/17,373.35 = 9,897.57/x
3. Step 3: Cross multiply
   12,584.68x = 17,373.35 × 9,897.57
4. Step 4: Simplify right side
   12,584.68x = 171,953,972.50
5. Step 5: Solve for x
   x = 171,953,972.50/12,584.68
6. Step 6: Final answer
   x = 13,663.76