Finding the Fourth Proportional to 142,142.85, 196,090.07 and 84,749.49

Step by Step Solution

1. Step 1: Write the proportion equation
   142,142.85 : 196,090.07 = 84,749.49 : x
2. Step 2: Convert to fraction form
   142,142.85/196,090.07 = 84,749.49/x
3. Step 3: Cross multiply
   142,142.85x = 196,090.07 × 84,749.49
4. Step 4: Simplify right side
   142,142.85x = 16,618,533,002.82
5. Step 5: Solve for x
   x = 16,618,533,002.82/142,142.85
6. Step 6: Final answer
   x = 116,914.31