Finding the Fourth Proportional to 31,446.72, 43,395.98 and 17,106.78

Step by Step Solution

1. Step 1: Write the proportion equation
   31,446.72 : 43,395.98 = 17,106.78 : x
2. Step 2: Convert to fraction form
   31,446.72/43,395.98 = 17,106.78/x
3. Step 3: Cross multiply
   31,446.72x = 43,395.98 × 17,106.78
4. Step 4: Simplify right side
   31,446.72x = 742,365,482.74
5. Step 5: Solve for x
   x = 742,365,482.74/31,446.72
6. Step 6: Final answer
   x = 23,607.09