Finding the Fourth Proportional to 85,886.58, 118,524.72 and 51,890.34

Step by Step Solution

1. Step 1: Write the proportion equation
   85,886.58 : 118,524.72 = 51,890.34 : x
2. Step 2: Convert to fraction form
   85,886.58/118,524.72 = 51,890.34/x
3. Step 3: Cross multiply
   85,886.58x = 118,524.72 × 51,890.34
4. Step 4: Simplify right side
   85,886.58x = 6,150,288,019.20
5. Step 5: Solve for x
   x = 6,150,288,019.20/85,886.58
6. Step 6: Final answer
   x = 71,609.42