Finding the Fourth Proportional to 142,047.47, 213,034.52 and 42,185.07

Step by Step Solution

1. Step 1: Write the proportion equation
   142,047.47 : 213,034.52 = 42,185.07 : x
2. Step 2: Convert to fraction form
   142,047.47/213,034.52 = 42,185.07/x
3. Step 3: Cross multiply
   142,047.47x = 213,034.52 × 42,185.07
4. Step 4: Simplify right side
   142,047.47x = 8,986,876,244.08
5. Step 5: Solve for x
   x = 8,986,876,244.08/142,047.47
6. Step 6: Final answer
   x = 63,266.71