Finding the Fourth Proportional to 12,665.95, 17,483.39 and 8,700.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,665.95 : 17,483.39 = 8,700.19 : x
2. Step 2: Convert to fraction form
   12,665.95/17,483.39 = 8,700.19/x
3. Step 3: Cross multiply
   12,665.95x = 17,483.39 × 8,700.19
4. Step 4: Simplify right side
   12,665.95x = 152,108,771.34
5. Step 5: Solve for x
   x = 152,108,771.34/12,665.95
6. Step 6: Final answer
   x = 12,009.27