Finding the Fourth Proportional to 25,300.56, 34,915.28 and 13,970.08

Step by Step Solution

1. Step 1: Write the proportion equation
   25,300.56 : 34,915.28 = 13,970.08 : x
2. Step 2: Convert to fraction form
   25,300.56/34,915.28 = 13,970.08/x
3. Step 3: Cross multiply
   25,300.56x = 34,915.28 × 13,970.08
4. Step 4: Simplify right side
   25,300.56x = 487,769,254.82
5. Step 5: Solve for x
   x = 487,769,254.82/25,300.56
6. Step 6: Final answer
   x = 19,278.99