Finding the Fourth Proportional to 31,320.34, 43,222.08 and 17,174.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,320.34 : 43,222.08 = 17,174.50 : x
2. Step 2: Convert to fraction form
   31,320.34/43,222.08 = 17,174.50/x
3. Step 3: Cross multiply
   31,320.34x = 43,222.08 × 17,174.50
4. Step 4: Simplify right side
   31,320.34x = 742,317,612.96
5. Step 5: Solve for x
   x = 742,317,612.96/31,320.34
6. Step 6: Final answer
   x = 23,700.82