Finding the Fourth Proportional to 55,008.45, 75,980.16 and 42,414.48

Step by Step Solution

1. Step 1: Write the proportion equation
   55,008.45 : 75,980.16 = 42,414.48 : x
2. Step 2: Convert to fraction form
   55,008.45/75,980.16 = 42,414.48/x
3. Step 3: Cross multiply
   55,008.45x = 75,980.16 × 42,414.48
4. Step 4: Simplify right side
   55,008.45x = 3,222,658,976.72
5. Step 5: Solve for x
   x = 3,222,658,976.72/55,008.45
6. Step 6: Final answer
   x = 58,584.80