Finding the Fourth Proportional to 142,134.71, 213,130.71 and 47,331.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,134.71 : 213,130.71 = 47,331.50 : x
2. Step 2: Convert to fraction form
   142,134.71/213,130.71 = 47,331.50/x
3. Step 3: Cross multiply
   142,134.71x = 213,130.71 × 47,331.50
4. Step 4: Simplify right side
   142,134.71x = 10,087,795,134.71
5. Step 5: Solve for x
   x = 10,087,795,134.71/142,134.71
6. Step 6: Final answer
   x = 70,973.48