Finding the Fourth Proportional to 22,775.97, 31,430.89 and 12,705.06

Step by Step Solution

1. Step 1: Write the proportion equation
   22,775.97 : 31,430.89 = 12,705.06 : x
2. Step 2: Convert to fraction form
   22,775.97/31,430.89 = 12,705.06/x
3. Step 3: Cross multiply
   22,775.97x = 31,430.89 × 12,705.06
4. Step 4: Simplify right side
   22,775.97x = 399,331,343.30
5. Step 5: Solve for x
   x = 399,331,343.30/22,775.97
6. Step 6: Final answer
   x = 17,533.01