Finding the Fourth Proportional to 113,523.32, 170,022.54 and 109,586.72

Step by Step Solution

1. Step 1: Write the proportion equation
   113,523.32 : 170,022.54 = 109,586.72 : x
2. Step 2: Convert to fraction form
   113,523.32/170,022.54 = 109,586.72/x
3. Step 3: Cross multiply
   113,523.32x = 170,022.54 × 109,586.72
4. Step 4: Simplify right side
   113,523.32x = 18,632,212,484.67
5. Step 5: Solve for x
   x = 18,632,212,484.67/113,523.32
6. Step 6: Final answer
   x = 164,126.74