Finding the Fourth Proportional to 56,643.48, 78,165 and 32,770.55

Step by Step Solution

1. Step 1: Write the proportion equation
   56,643.48 : 78,165 = 32,770.55 : x
2. Step 2: Convert to fraction form
   56,643.48/78,165 = 32,770.55/x
3. Step 3: Cross multiply
   56,643.48x = 78,165 × 32,770.55
4. Step 4: Simplify right side
   56,643.48x = 2,561,510,040.75
5. Step 5: Solve for x
   x = 2,561,510,040.75/56,643.48
6. Step 6: Final answer
   x = 45,221.62