Finding the Fourth Proportional to 25,123.72, 34,670.10 and 13,945

Step by Step Solution

1. Step 1: Write the proportion equation
   25,123.72 : 34,670.10 = 13,945 : x
2. Step 2: Convert to fraction form
   25,123.72/34,670.10 = 13,945/x
3. Step 3: Cross multiply
   25,123.72x = 34,670.10 × 13,945
4. Step 4: Simplify right side
   25,123.72x = 483,474,544.50
5. Step 5: Solve for x
   x = 483,474,544.50/25,123.72
6. Step 6: Final answer
   x = 19,243.75