Finding the Fourth Proportional to 42,680.24, 58,923.96 and 30,774.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,680.24 : 58,923.96 = 30,774.32 : x
2. Step 2: Convert to fraction form
   42,680.24/58,923.96 = 30,774.32/x
3. Step 3: Cross multiply
   42,680.24x = 58,923.96 × 30,774.32
4. Step 4: Simplify right side
   42,680.24x = 1,813,344,800.71
5. Step 5: Solve for x
   x = 1,813,344,800.71/42,680.24
6. Step 6: Final answer
   x = 42,486.75