Finding the Fourth Proportional to 142,272.67, 196,427.81 and 91,307.37

Step by Step Solution

1. Step 1: Write the proportion equation
   142,272.67 : 196,427.81 = 91,307.37 : x
2. Step 2: Convert to fraction form
   142,272.67/196,427.81 = 91,307.37/x
3. Step 3: Cross multiply
   142,272.67x = 196,427.81 × 91,307.37
4. Step 4: Simplify right side
   142,272.67x = 17,935,306,329.12
5. Step 5: Solve for x
   x = 17,935,306,329.12/142,272.67
6. Step 6: Final answer
   x = 126,062.91