Finding the Fourth Proportional to 25,101.60, 37,578.42 and 21,987.69

Step by Step Solution

1. Step 1: Write the proportion equation
   25,101.60 : 37,578.42 = 21,987.69 : x
2. Step 2: Convert to fraction form
   25,101.60/37,578.42 = 21,987.69/x
3. Step 3: Cross multiply
   25,101.60x = 37,578.42 × 21,987.69
4. Step 4: Simplify right side
   25,101.60x = 826,262,649.65
5. Step 5: Solve for x
   x = 826,262,649.65/25,101.60
6. Step 6: Final answer
   x = 32,916.73