Finding the Fourth Proportional to 42,171.69, 63,275.02 and 18,466.99

Step by Step Solution

1. Step 1: Write the proportion equation
   42,171.69 : 63,275.02 = 18,466.99 : x
2. Step 2: Convert to fraction form
   42,171.69/63,275.02 = 18,466.99/x
3. Step 3: Cross multiply
   42,171.69x = 63,275.02 × 18,466.99
4. Step 4: Simplify right side
   42,171.69x = 1,168,499,061.11
5. Step 5: Solve for x
   x = 1,168,499,061.11/42,171.69
6. Step 6: Final answer
   x = 27,708.14