Finding the Fourth Proportional to 142,971.57, 214,387.88 and 43,113.15

Step by Step Solution

1. Step 1: Write the proportion equation
   142,971.57 : 214,387.88 = 43,113.15 : x
2. Step 2: Convert to fraction form
   142,971.57/214,387.88 = 43,113.15/x
3. Step 3: Cross multiply
   142,971.57x = 214,387.88 × 43,113.15
4. Step 4: Simplify right side
   142,971.57x = 9,242,936,613.06
5. Step 5: Solve for x
   x = 9,242,936,613.06/142,971.57
6. Step 6: Final answer
   x = 64,648.77