Finding the Fourth Proportional to 42,087.08, 63,070.46 and 30,906.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,087.08 : 63,070.46 = 30,906.04 : x
2. Step 2: Convert to fraction form
   42,087.08/63,070.46 = 30,906.04/x
3. Step 3: Cross multiply
   42,087.08x = 63,070.46 × 30,906.04
4. Step 4: Simplify right side
   42,087.08x = 1,949,258,159.58
5. Step 5: Solve for x
   x = 1,949,258,159.58/42,087.08
6. Step 6: Final answer
   x = 46,314.88