Finding the Fourth Proportional to 21,060.63, 31,594.37 and 7,914.06

Step by Step Solution

1. Step 1: Write the proportion equation
   21,060.63 : 31,594.37 = 7,914.06 : x
2. Step 2: Convert to fraction form
   21,060.63/31,594.37 = 7,914.06/x
3. Step 3: Cross multiply
   21,060.63x = 31,594.37 × 7,914.06
4. Step 4: Simplify right side
   21,060.63x = 250,039,700.27
5. Step 5: Solve for x
   x = 250,039,700.27/21,060.63
6. Step 6: Final answer
   x = 11,872.38