Finding the Fourth Proportional to 113,522.32, 170,021.04 and 109,585.72

Step by Step Solution

1. Step 1: Write the proportion equation
   113,522.32 : 170,021.04 = 109,585.72 : x
2. Step 2: Convert to fraction form
   113,522.32/170,021.04 = 109,585.72/x
3. Step 3: Cross multiply
   113,522.32x = 170,021.04 × 109,585.72
4. Step 4: Simplify right side
   113,522.32x = 18,631,878,083.55
5. Step 5: Solve for x
   x = 18,631,878,083.55/113,522.32
6. Step 6: Final answer
   x = 164,125.24