Finding the Fourth Proportional to 13,037.90, 18,003.53 and 12,373.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,037.90 : 18,003.53 = 12,373.56 : x
2. Step 2: Convert to fraction form
   13,037.90/18,003.53 = 12,373.56/x
3. Step 3: Cross multiply
   13,037.90x = 18,003.53 × 12,373.56
4. Step 4: Simplify right side
   13,037.90x = 222,767,789.60
5. Step 5: Solve for x
   x = 222,767,789.60/13,037.90
6. Step 6: Final answer
   x = 17,086.18