Finding the Fourth Proportional to 56,885.42, 85,213.89 and 28,336.38

Step by Step Solution

1. Step 1: Write the proportion equation
   56,885.42 : 85,213.89 = 28,336.38 : x
2. Step 2: Convert to fraction form
   56,885.42/85,213.89 = 28,336.38/x
3. Step 3: Cross multiply
   56,885.42x = 85,213.89 × 28,336.38
4. Step 4: Simplify right side
   56,885.42x = 2,414,653,168.32
5. Step 5: Solve for x
   x = 2,414,653,168.32/56,885.42
6. Step 6: Final answer
   x = 42,447.66