Finding the Fourth Proportional to 55,300.20, 82,930.05 and 17,870.10

Step by Step Solution

1. Step 1: Write the proportion equation
   55,300.20 : 82,930.05 = 17,870.10 : x
2. Step 2: Convert to fraction form
   55,300.20/82,930.05 = 17,870.10/x
3. Step 3: Cross multiply
   55,300.20x = 82,930.05 × 17,870.10
4. Step 4: Simplify right side
   55,300.20x = 1,481,968,286.51
5. Step 5: Solve for x
   x = 1,481,968,286.51/55,300.20
6. Step 6: Final answer
   x = 26,798.61