Finding the Fourth Proportional to 23,088.50, 31,846.96 and 15,918.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,088.50 : 31,846.96 = 15,918.72 : x
2. Step 2: Convert to fraction form
   23,088.50/31,846.96 = 15,918.72/x
3. Step 3: Cross multiply
   23,088.50x = 31,846.96 × 15,918.72
4. Step 4: Simplify right side
   23,088.50x = 506,962,905.42
5. Step 5: Solve for x
   x = 506,962,905.42/23,088.50
6. Step 6: Final answer
   x = 21,957.37