Finding the Fourth Proportional to 25,222.86, 34,809.12 and 13,892.35

Step by Step Solution

1. Step 1: Write the proportion equation
   25,222.86 : 34,809.12 = 13,892.35 : x
2. Step 2: Convert to fraction form
   25,222.86/34,809.12 = 13,892.35/x
3. Step 3: Cross multiply
   25,222.86x = 34,809.12 × 13,892.35
4. Step 4: Simplify right side
   25,222.86x = 483,580,478.23
5. Step 5: Solve for x
   x = 483,580,478.23/25,222.86
6. Step 6: Final answer
   x = 19,172.31