Finding the Fourth Proportional to 142,087.71, 196,068.62 and 91,010.33

Step by Step Solution

1. Step 1: Write the proportion equation
   142,087.71 : 196,068.62 = 91,010.33 : x
2. Step 2: Convert to fraction form
   142,087.71/196,068.62 = 91,010.33/x
3. Step 3: Cross multiply
   142,087.71x = 196,068.62 × 91,010.33
4. Step 4: Simplify right side
   142,087.71x = 17,844,269,056.03
5. Step 5: Solve for x
   x = 17,844,269,056.03/142,087.71
6. Step 6: Final answer
   x = 125,586.29