Finding the Fourth Proportional to 31,288.08, 43,177.86 and 17,861.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,288.08 : 43,177.86 = 17,861.10 : x
2. Step 2: Convert to fraction form
   31,288.08/43,177.86 = 17,861.10/x
3. Step 3: Cross multiply
   31,288.08x = 43,177.86 × 17,861.10
4. Step 4: Simplify right side
   31,288.08x = 771,204,075.25
5. Step 5: Solve for x
   x = 771,204,075.25/31,288.08
6. Step 6: Final answer
   x = 24,648.49