Finding the Fourth Proportional to 42,648.18, 63,999.94 and 19,274.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,648.18 : 63,999.94 = 19,274.82 : x
2. Step 2: Convert to fraction form
   42,648.18/63,999.94 = 19,274.82/x
3. Step 3: Cross multiply
   42,648.18x = 63,999.94 × 19,274.82
4. Step 4: Simplify right side
   42,648.18x = 1,233,587,323.51
5. Step 5: Solve for x
   x = 1,233,587,323.51/42,648.18
6. Step 6: Final answer
   x = 28,924.74