Finding the Fourth Proportional to 55,109.16, 82,622.13 and 28,426.55

Step by Step Solution

1. Step 1: Write the proportion equation
   55,109.16 : 82,622.13 = 28,426.55 : x
2. Step 2: Convert to fraction form
   55,109.16/82,622.13 = 28,426.55/x
3. Step 3: Cross multiply
   55,109.16x = 82,622.13 × 28,426.55
4. Step 4: Simplify right side
   55,109.16x = 2,348,662,109.55
5. Step 5: Solve for x
   x = 2,348,662,109.55/55,109.16
6. Step 6: Final answer
   x = 42,618.36