Finding the Fourth Proportional to 57,087.32, 78,855.80 and 43,822.49

Step by Step Solution

1. Step 1: Write the proportion equation
   57,087.32 : 78,855.80 = 43,822.49 : x
2. Step 2: Convert to fraction form
   57,087.32/78,855.80 = 43,822.49/x
3. Step 3: Cross multiply
   57,087.32x = 78,855.80 × 43,822.49
4. Step 4: Simplify right side
   57,087.32x = 3,455,656,893.55
5. Step 5: Solve for x
   x = 3,455,656,893.55/57,087.32
6. Step 6: Final answer
   x = 60,532.83