Finding the Fourth Proportional to 12,435, 18,657.72 and 5,044.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,435 : 18,657.72 = 5,044.74 : x
2. Step 2: Convert to fraction form
   12,435/18,657.72 = 5,044.74/x
3. Step 3: Cross multiply
   12,435x = 18,657.72 × 5,044.74
4. Step 4: Simplify right side
   12,435x = 94,123,346.39
5. Step 5: Solve for x
   x = 94,123,346.39/12,435
6. Step 6: Final answer
   x = 7,569.23