Finding the Fourth Proportional to 25,139.62, 34,690.60 and 13,808.53

Step by Step Solution

1. Step 1: Write the proportion equation
   25,139.62 : 34,690.60 = 13,808.53 : x
2. Step 2: Convert to fraction form
   25,139.62/34,690.60 = 13,808.53/x
3. Step 3: Cross multiply
   25,139.62x = 34,690.60 × 13,808.53
4. Step 4: Simplify right side
   25,139.62x = 479,026,095.14
5. Step 5: Solve for x
   x = 479,026,095.14/25,139.62
6. Step 6: Final answer
   x = 19,054.63