Finding the Fourth Proportional to 31,300.20, 43,192.85 and 17,152.74

Step by Step Solution

1. Step 1: Write the proportion equation
   31,300.20 : 43,192.85 = 17,152.74 : x
2. Step 2: Convert to fraction form
   31,300.20/43,192.85 = 17,152.74/x
3. Step 3: Cross multiply
   31,300.20x = 43,192.85 × 17,152.74
4. Step 4: Simplify right side
   31,300.20x = 740,875,640.15
5. Step 5: Solve for x
   x = 740,875,640.15/31,300.20
6. Step 6: Final answer
   x = 23,670.00