Finding the Fourth Proportional to 113,540.67, 155,551.41 and 109,284.12

Step by Step Solution

1. Step 1: Write the proportion equation
   113,540.67 : 155,551.41 = 109,284.12 : x
2. Step 2: Convert to fraction form
   113,540.67/155,551.41 = 109,284.12/x
3. Step 3: Cross multiply
   113,540.67x = 155,551.41 × 109,284.12
4. Step 4: Simplify right side
   113,540.67x = 16,999,298,956.61
5. Step 5: Solve for x
   x = 16,999,298,956.61/113,540.67
6. Step 6: Final answer
   x = 149,719.91