Finding the Fourth Proportional to 113,304.16, 170,002.32 and 72,823

Step by Step Solution

1. Step 1: Write the proportion equation
   113,304.16 : 170,002.32 = 72,823 : x
2. Step 2: Convert to fraction form
   113,304.16/170,002.32 = 72,823/x
3. Step 3: Cross multiply
   113,304.16x = 170,002.32 × 72,823
4. Step 4: Simplify right side
   113,304.16x = 12,380,078,949.36
5. Step 5: Solve for x
   x = 12,380,078,949.36/113,304.16
6. Step 6: Final answer
   x = 109,264.12