Finding the Fourth Proportional to 21,939.56, 32,901.18 and 7,895.78

Step by Step Solution

1. Step 1: Write the proportion equation
   21,939.56 : 32,901.18 = 7,895.78 : x
2. Step 2: Convert to fraction form
   21,939.56/32,901.18 = 7,895.78/x
3. Step 3: Cross multiply
   21,939.56x = 32,901.18 × 7,895.78
4. Step 4: Simplify right side
   21,939.56x = 259,780,479.02
5. Step 5: Solve for x
   x = 259,780,479.02/21,939.56
6. Step 6: Final answer
   x = 11,840.73