Finding the Fourth Proportional to 13,249, 18,283.62 and 12,259.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,249 : 18,283.62 = 12,259.72 : x
2. Step 2: Convert to fraction form
   13,249/18,283.62 = 12,259.72/x
3. Step 3: Cross multiply
   13,249x = 18,283.62 × 12,259.72
4. Step 4: Simplify right side
   13,249x = 224,152,061.79
5. Step 5: Solve for x
   x = 224,152,061.79/13,249
6. Step 6: Final answer
   x = 16,918.41