Finding the Fourth Proportional to 142,976.96, 214,334.20 and 49,417.12

Step by Step Solution

1. Step 1: Write the proportion equation
   142,976.96 : 214,334.20 = 49,417.12 : x
2. Step 2: Convert to fraction form
   142,976.96/214,334.20 = 49,417.12/x
3. Step 3: Cross multiply
   142,976.96x = 214,334.20 × 49,417.12
4. Step 4: Simplify right side
   142,976.96x = 10,591,778,881.50
5. Step 5: Solve for x
   x = 10,591,778,881.50/142,976.96
6. Step 6: Final answer
   x = 74,080.32