Finding the Fourth Proportional to 25,262.06, 34,860.88 and 13,931.55

Step by Step Solution

1. Step 1: Write the proportion equation
   25,262.06 : 34,860.88 = 13,931.55 : x
2. Step 2: Convert to fraction form
   25,262.06/34,860.88 = 13,931.55/x
3. Step 3: Cross multiply
   25,262.06x = 34,860.88 × 13,931.55
4. Step 4: Simplify right side
   25,262.06x = 485,666,092.76
5. Step 5: Solve for x
   x = 485,666,092.76/25,262.06
6. Step 6: Final answer
   x = 19,225.12