Finding the Fourth Proportional to 159,147, 219,634.74 and 91,185.12

Step by Step Solution

1. Step 1: Write the proportion equation
   159,147 : 219,634.74 = 91,185.12 : x
2. Step 2: Convert to fraction form
   159,147/219,634.74 = 91,185.12/x
3. Step 3: Cross multiply
   159,147x = 219,634.74 × 91,185.12
4. Step 4: Simplify right side
   159,147x = 20,027,420,123.07
5. Step 5: Solve for x
   x = 20,027,420,123.07/159,147
6. Step 6: Final answer
   x = 125,842.27