Finding the Fourth Proportional to 64,536.48, 89,061.45 and 35,858.73

Step by Step Solution

1. Step 1: Write the proportion equation
   64,536.48 : 89,061.45 = 35,858.73 : x
2. Step 2: Convert to fraction form
   64,536.48/89,061.45 = 35,858.73/x
3. Step 3: Cross multiply
   64,536.48x = 89,061.45 × 35,858.73
4. Step 4: Simplify right side
   64,536.48x = 3,193,630,488.96
5. Step 5: Solve for x
   x = 3,193,630,488.96/64,536.48
6. Step 6: Final answer
   x = 49,485.66