Finding the Fourth Proportional to 12,931.71, 17,852.52 and 8,704.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,931.71 : 17,852.52 = 8,704.98 : x
2. Step 2: Convert to fraction form
   12,931.71/17,852.52 = 8,704.98/x
3. Step 3: Cross multiply
   12,931.71x = 17,852.52 × 8,704.98
4. Step 4: Simplify right side
   12,931.71x = 155,405,829.55
5. Step 5: Solve for x
   x = 155,405,829.55/12,931.71
6. Step 6: Final answer
   x = 12,017.42