Finding the Fourth Proportional to 21,089.51, 31,623.84 and 7,044.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,089.51 : 31,623.84 = 7,044.72 : x
2. Step 2: Convert to fraction form
   21,089.51/31,623.84 = 7,044.72/x
3. Step 3: Cross multiply
   21,089.51x = 31,623.84 × 7,044.72
4. Step 4: Simplify right side
   21,089.51x = 222,781,157.42
5. Step 5: Solve for x
   x = 222,781,157.42/21,089.51
6. Step 6: Final answer
   x = 10,563.60