Finding the Fourth Proportional to 13,414.66, 18,472.71 and 13,123.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,414.66 : 18,472.71 = 13,123.52 : x
2. Step 2: Convert to fraction form
   13,414.66/18,472.71 = 13,123.52/x
3. Step 3: Cross multiply
   13,414.66x = 18,472.71 × 13,123.52
4. Step 4: Simplify right side
   13,414.66x = 242,426,931.44
5. Step 5: Solve for x
   x = 242,426,931.44/13,414.66
6. Step 6: Final answer
   x = 18,071.79