Finding the Fourth Proportional to 55,873.62, 77,105.60 and 30,723.12

Step by Step Solution

1. Step 1: Write the proportion equation
   55,873.62 : 77,105.60 = 30,723.12 : x
2. Step 2: Convert to fraction form
   55,873.62/77,105.60 = 30,723.12/x
3. Step 3: Cross multiply
   55,873.62x = 77,105.60 × 30,723.12
4. Step 4: Simplify right side
   55,873.62x = 2,368,924,447.86
5. Step 5: Solve for x
   x = 2,368,924,447.86/55,873.62
6. Step 6: Final answer
   x = 42,397.91