Finding the Fourth Proportional to 103,442.56, 155,158.80 and 33,320.32

Step by Step Solution

1. Step 1: Write the proportion equation
   103,442.56 : 155,158.80 = 33,320.32 : x
2. Step 2: Convert to fraction form
   103,442.56/155,158.80 = 33,320.32/x
3. Step 3: Cross multiply
   103,442.56x = 155,158.80 × 33,320.32
4. Step 4: Simplify right side
   103,442.56x = 5,169,940,866.82
5. Step 5: Solve for x
   x = 5,169,940,866.82/103,442.56
6. Step 6: Final answer
   x = 49,978.86