Finding the Fourth Proportional to 42,646.18, 63,996.94 and 19,272.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,646.18 : 63,996.94 = 19,272.82 : x
2. Step 2: Convert to fraction form
   42,646.18/63,996.94 = 19,272.82/x
3. Step 3: Cross multiply
   42,646.18x = 63,996.94 × 19,272.82
4. Step 4: Simplify right side
   42,646.18x = 1,233,401,505.17
5. Step 5: Solve for x
   x = 1,233,401,505.17/42,646.18
6. Step 6: Final answer
   x = 28,921.73