Finding the Fourth Proportional to 55,300.85, 82,946.66 and 28,618.10

Step by Step Solution

1. Step 1: Write the proportion equation
   55,300.85 : 82,946.66 = 28,618.10 : x
2. Step 2: Convert to fraction form
   55,300.85/82,946.66 = 28,618.10/x
3. Step 3: Cross multiply
   55,300.85x = 82,946.66 × 28,618.10
4. Step 4: Simplify right side
   55,300.85x = 2,373,775,252.72
5. Step 5: Solve for x
   x = 2,373,775,252.72/55,300.85
6. Step 6: Final answer
   x = 42,924.76