Finding the Fourth Proportional to 80,210.33, 120,533.60 and 42,796.83

Step by Step Solution

1. Step 1: Write the proportion equation
   80,210.33 : 120,533.60 = 42,796.83 : x
2. Step 2: Convert to fraction form
   80,210.33/120,533.60 = 42,796.83/x
3. Step 3: Cross multiply
   80,210.33x = 120,533.60 × 42,796.83
4. Step 4: Simplify right side
   80,210.33x = 5,158,455,988.49
5. Step 5: Solve for x
   x = 5,158,455,988.49/80,210.33
6. Step 6: Final answer
   x = 64,311.62