Finding the Fourth Proportional to 143,156.55, 214,680.11 and 47,071.38

Step by Step Solution

1. Step 1: Write the proportion equation
   143,156.55 : 214,680.11 = 47,071.38 : x
2. Step 2: Convert to fraction form
   143,156.55/214,680.11 = 47,071.38/x
3. Step 3: Cross multiply
   143,156.55x = 214,680.11 × 47,071.38
4. Step 4: Simplify right side
   143,156.55x = 10,105,288,800.89
5. Step 5: Solve for x
   x = 10,105,288,800.89/143,156.55
6. Step 6: Final answer
   x = 70,589.08