Finding the Fourth Proportional to 142,103.15, 213,108.57 and 47,307.86

Step by Step Solution

1. Step 1: Write the proportion equation
   142,103.15 : 213,108.57 = 47,307.86 : x
2. Step 2: Convert to fraction form
   142,103.15/213,108.57 = 47,307.86/x
3. Step 3: Cross multiply
   142,103.15x = 213,108.57 × 47,307.86
4. Step 4: Simplify right side
   142,103.15x = 10,081,709,328.82
5. Step 5: Solve for x
   x = 10,081,709,328.82/142,103.15
6. Step 6: Final answer
   x = 70,946.42