Finding the Fourth Proportional to 42,450.06, 58,587.64 and 30,552.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,450.06 : 58,587.64 = 30,552.78 : x
2. Step 2: Convert to fraction form
   42,450.06/58,587.64 = 30,552.78/x
3. Step 3: Cross multiply
   42,450.06x = 58,587.64 × 30,552.78
4. Step 4: Simplify right side
   42,450.06x = 1,790,015,275.64
5. Step 5: Solve for x
   x = 1,790,015,275.64/42,450.06
6. Step 6: Final answer
   x = 42,167.56