Finding the Fourth Proportional to 25,145.76, 34,702.56 and 13,815.84

Step by Step Solution

1. Step 1: Write the proportion equation
   25,145.76 : 34,702.56 = 13,815.84 : x
2. Step 2: Convert to fraction form
   25,145.76/34,702.56 = 13,815.84/x
3. Step 3: Cross multiply
   25,145.76x = 34,702.56 × 13,815.84
4. Step 4: Simplify right side
   25,145.76x = 479,445,016.55
5. Step 5: Solve for x
   x = 479,445,016.55/25,145.76
6. Step 6: Final answer
   x = 19,066.63