Finding the Fourth Proportional to 64,526.42, 89,078.84 and 40,340.83

Step by Step Solution

1. Step 1: Write the proportion equation
   64,526.42 : 89,078.84 = 40,340.83 : x
2. Step 2: Convert to fraction form
   64,526.42/89,078.84 = 40,340.83/x
3. Step 3: Cross multiply
   64,526.42x = 89,078.84 × 40,340.83
4. Step 4: Simplify right side
   64,526.42x = 3,593,514,341.04
5. Step 5: Solve for x
   x = 3,593,514,341.04/64,526.42
6. Step 6: Final answer
   x = 55,690.59