Finding the Fourth Proportional to 55,810.05, 77,017.91 and 30,659.55

Step by Step Solution

1. Step 1: Write the proportion equation
   55,810.05 : 77,017.91 = 30,659.55 : x
2. Step 2: Convert to fraction form
   55,810.05/77,017.91 = 30,659.55/x
3. Step 3: Cross multiply
   55,810.05x = 77,017.91 × 30,659.55
4. Step 4: Simplify right side
   55,810.05x = 2,361,334,462.54
5. Step 5: Solve for x
   x = 2,361,334,462.54/55,810.05
6. Step 6: Final answer
   x = 42,310.20