Finding the Fourth Proportional to 31,558.50, 43,550.78 and 17,412.30

Step by Step Solution

1. Step 1: Write the proportion equation
   31,558.50 : 43,550.78 = 17,412.30 : x
2. Step 2: Convert to fraction form
   31,558.50/43,550.78 = 17,412.30/x
3. Step 3: Cross multiply
   31,558.50x = 43,550.78 × 17,412.30
4. Step 4: Simplify right side
   31,558.50x = 758,319,159.53
5. Step 5: Solve for x
   x = 758,319,159.53/31,558.50
6. Step 6: Final answer
   x = 24,029.00