Finding the Fourth Proportional to 142,748.47, 214,142.37 and 47,986.01

Step by Step Solution

1. Step 1: Write the proportion equation
   142,748.47 : 214,142.37 = 47,986.01 : x
2. Step 2: Convert to fraction form
   142,748.47/214,142.37 = 47,986.01/x
3. Step 3: Cross multiply
   142,748.47x = 214,142.37 × 47,986.01
4. Step 4: Simplify right side
   142,748.47x = 10,275,837,908.24
5. Step 5: Solve for x
   x = 10,275,837,908.24/142,748.47
6. Step 6: Final answer
   x = 71,985.63