Finding the Fourth Proportional to 142,123.71, 213,114.26 and 47,320.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,123.71 : 213,114.26 = 47,320.50 : x
2. Step 2: Convert to fraction form
   142,123.71/213,114.26 = 47,320.50/x
3. Step 3: Cross multiply
   142,123.71x = 213,114.26 × 47,320.50
4. Step 4: Simplify right side
   142,123.71x = 10,084,673,991.63
5. Step 5: Solve for x
   x = 10,084,673,991.63/142,123.71
6. Step 6: Final answer
   x = 70,957.01