Finding the Fourth Proportional to 42,091.32, 63,076.82 and 30,910.28

Step by Step Solution

1. Step 1: Write the proportion equation
   42,091.32 : 63,076.82 = 30,910.28 : x
2. Step 2: Convert to fraction form
   42,091.32/63,076.82 = 30,910.28/x
3. Step 3: Cross multiply
   42,091.32x = 63,076.82 × 30,910.28
4. Step 4: Simplify right side
   42,091.32x = 1,949,722,167.71
5. Step 5: Solve for x
   x = 1,949,722,167.71/42,091.32
6. Step 6: Final answer
   x = 46,321.24