Finding the Fourth Proportional to 42,464.82, 63,698.64 and 19,091.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,464.82 : 63,698.64 = 19,091.32 : x
2. Step 2: Convert to fraction form
   42,464.82/63,698.64 = 19,091.32/x
3. Step 3: Cross multiply
   42,464.82x = 63,698.64 × 19,091.32
4. Step 4: Simplify right side
   42,464.82x = 1,216,091,119.80
5. Step 5: Solve for x
   x = 1,216,091,119.80/42,464.82
6. Step 6: Final answer
   x = 28,637.61