Finding the Fourth Proportional to 25,570.99, 38,146.72 and 23,781.30

Step by Step Solution

1. Step 1: Write the proportion equation
   25,570.99 : 38,146.72 = 23,781.30 : x
2. Step 2: Convert to fraction form
   25,570.99/38,146.72 = 23,781.30/x
3. Step 3: Cross multiply
   25,570.99x = 38,146.72 × 23,781.30
4. Step 4: Simplify right side
   25,570.99x = 907,178,501.31
5. Step 5: Solve for x
   x = 907,178,501.31/25,570.99
6. Step 6: Final answer
   x = 35,476.86