Finding the Fourth Proportional to 142,178.24, 213,260.88 and 47,401.76

Step by Step Solution

1. Step 1: Write the proportion equation
   142,178.24 : 213,260.88 = 47,401.76 : x
2. Step 2: Convert to fraction form
   142,178.24/213,260.88 = 47,401.76/x
3. Step 3: Cross multiply
   142,178.24x = 213,260.88 × 47,401.76
4. Step 4: Simplify right side
   142,178.24x = 10,108,941,051.15
5. Step 5: Solve for x
   x = 10,108,941,051.15/142,178.24
6. Step 6: Final answer
   x = 71,100.48