Finding the Fourth Proportional to 56,514.42, 77,989.77 and 32,640.48

Step by Step Solution

1. Step 1: Write the proportion equation
   56,514.42 : 77,989.77 = 32,640.48 : x
2. Step 2: Convert to fraction form
   56,514.42/77,989.77 = 32,640.48/x
3. Step 3: Cross multiply
   56,514.42x = 77,989.77 × 32,640.48
4. Step 4: Simplify right side
   56,514.42x = 2,545,623,527.89
5. Step 5: Solve for x
   x = 2,545,623,527.89/56,514.42
6. Step 6: Final answer
   x = 45,043.79