Finding the Fourth Proportional to 42,111.91, 63,167.68 and 17,146.05

Step by Step Solution

1. Step 1: Write the proportion equation
   42,111.91 : 63,167.68 = 17,146.05 : x
2. Step 2: Convert to fraction form
   42,111.91/63,167.68 = 17,146.05/x
3. Step 3: Cross multiply
   42,111.91x = 63,167.68 × 17,146.05
4. Step 4: Simplify right side
   42,111.91x = 1,083,076,199.66
5. Step 5: Solve for x
   x = 1,083,076,199.66/42,111.91
6. Step 6: Final answer
   x = 25,719.00