Finding the Fourth Proportional to 142,224.08, 213,264.72 and 47,420.72

Step by Step Solution

1. Step 1: Write the proportion equation
   142,224.08 : 213,264.72 = 47,420.72 : x
2. Step 2: Convert to fraction form
   142,224.08/213,264.72 = 47,420.72/x
3. Step 3: Cross multiply
   142,224.08x = 213,264.72 × 47,420.72
4. Step 4: Simplify right side
   142,224.08x = 10,113,166,573.00
5. Step 5: Solve for x
   x = 10,113,166,573.00/142,224.08
6. Step 6: Final answer
   x = 71,107.27