Finding the Fourth Proportional to 142,581.77, 213,865.82 and 47,813.29

Step by Step Solution

1. Step 1: Write the proportion equation
   142,581.77 : 213,865.82 = 47,813.29 : x
2. Step 2: Convert to fraction form
   142,581.77/213,865.82 = 47,813.29/x
3. Step 3: Cross multiply
   142,581.77x = 213,865.82 × 47,813.29
4. Step 4: Simplify right side
   142,581.77x = 10,225,627,878.32
5. Step 5: Solve for x
   x = 10,225,627,878.32/142,581.77
6. Step 6: Final answer
   x = 71,717.64