Finding the Fourth Proportional to 45,885, 63,343.55 and 30,772.13

Step by Step Solution

1. Step 1: Write the proportion equation
   45,885 : 63,343.55 = 30,772.13 : x
2. Step 2: Convert to fraction form
   45,885/63,343.55 = 30,772.13/x
3. Step 3: Cross multiply
   45,885x = 63,343.55 × 30,772.13
4. Step 4: Simplify right side
   45,885x = 1,949,215,801.40
5. Step 5: Solve for x
   x = 1,949,215,801.40/45,885
6. Step 6: Final answer
   x = 42,480.46