Finding the Fourth Proportional to 25,321.86, 37,971.24 and 10,521.96

Step by Step Solution

1. Step 1: Write the proportion equation
   25,321.86 : 37,971.24 = 10,521.96 : x
2. Step 2: Convert to fraction form
   25,321.86/37,971.24 = 10,521.96/x
3. Step 3: Cross multiply
   25,321.86x = 37,971.24 × 10,521.96
4. Step 4: Simplify right side
   25,321.86x = 399,531,868.43
5. Step 5: Solve for x
   x = 399,531,868.43/25,321.86
6. Step 6: Final answer
   x = 15,778.14