Finding the Fourth Proportional to 25,677, 35,430.76 and 14,345.12

Step by Step Solution

1. Step 1: Write the proportion equation
   25,677 : 35,430.76 = 14,345.12 : x
2. Step 2: Convert to fraction form
   25,677/35,430.76 = 14,345.12/x
3. Step 3: Cross multiply
   25,677x = 35,430.76 × 14,345.12
4. Step 4: Simplify right side
   25,677x = 508,258,503.89
5. Step 5: Solve for x
   x = 508,258,503.89/25,677
6. Step 6: Final answer
   x = 19,794.31