Finding the Fourth Proportional to 24,877, 34,330.42 and 13,699.72

Step by Step Solution

1. Step 1: Write the proportion equation
   24,877 : 34,330.42 = 13,699.72 : x
2. Step 2: Convert to fraction form
   24,877/34,330.42 = 13,699.72/x
3. Step 3: Cross multiply
   24,877x = 34,330.42 × 13,699.72
4. Step 4: Simplify right side
   24,877x = 470,317,141.48
5. Step 5: Solve for x
   x = 470,317,141.48/24,877
6. Step 6: Final answer
   x = 18,905.70