Finding the Fourth Proportional to 99,747, 150,286.82 and 90,272.04

Step by Step Solution

1. Step 1: Write the proportion equation
   99,747 : 150,286.82 = 90,272.04 : x
2. Step 2: Convert to fraction form
   99,747/150,286.82 = 90,272.04/x
3. Step 3: Cross multiply
   99,747x = 150,286.82 × 90,272.04
4. Step 4: Simplify right side
   99,747x = 13,566,697,826.51
5. Step 5: Solve for x
   x = 13,566,697,826.51/99,747
6. Step 6: Final answer
   x = 136,011.09