Finding the Fourth Proportional to 25,925.00, 38,855.91 and 13,438.15

Step by Step Solution

1. Step 1: Write the proportion equation
   25,925.00 : 38,855.91 = 13,438.15 : x
2. Step 2: Convert to fraction form
   25,925.00/38,855.91 = 13,438.15/x
3. Step 3: Cross multiply
   25,925.00x = 38,855.91 × 13,438.15
4. Step 4: Simplify right side
   25,925.00x = 522,151,449.83
5. Step 5: Solve for x
   x = 522,151,449.83/25,925.00
6. Step 6: Final answer
   x = 20,140.84