Finding the Fourth Proportional to 42,086.32, 63,069.33 and 30,905.29

Step by Step Solution

1. Step 1: Write the proportion equation
   42,086.32 : 63,069.33 = 30,905.29 : x
2. Step 2: Convert to fraction form
   42,086.32/63,069.33 = 30,905.29/x
3. Step 3: Cross multiply
   42,086.32x = 63,069.33 × 30,905.29
4. Step 4: Simplify right side
   42,086.32x = 1,949,175,933.76
5. Step 5: Solve for x
   x = 1,949,175,933.76/42,086.32
6. Step 6: Final answer
   x = 46,313.76