Finding the Fourth Proportional to 142,722.50, 196,867.94 and 91,801.58

Step by Step Solution

1. Step 1: Write the proportion equation
   142,722.50 : 196,867.94 = 91,801.58 : x
2. Step 2: Convert to fraction form
   142,722.50/196,867.94 = 91,801.58/x
3. Step 3: Cross multiply
   142,722.50x = 196,867.94 × 91,801.58
4. Step 4: Simplify right side
   142,722.50x = 18,072,786,500.00
5. Step 5: Solve for x
   x = 18,072,786,500.00/142,722.50
6. Step 6: Final answer
   x = 126,628.86