Finding the Fourth Proportional to 42,017.91, 63,036.59 and 18,646.17

Step by Step Solution

1. Step 1: Write the proportion equation
   42,017.91 : 63,036.59 = 18,646.17 : x
2. Step 2: Convert to fraction form
   42,017.91/63,036.59 = 18,646.17/x
3. Step 3: Cross multiply
   42,017.91x = 63,036.59 × 18,646.17
4. Step 4: Simplify right side
   42,017.91x = 1,175,390,880.13
5. Step 5: Solve for x
   x = 1,175,390,880.13/42,017.91
6. Step 6: Final answer
   x = 27,973.57