Finding the Fourth Proportional to 109,154.72, 150,903.96 and 108,158.42

Step by Step Solution

1. Step 1: Write the proportion equation
   109,154.72 : 150,903.96 = 108,158.42 : x
2. Step 2: Convert to fraction form
   109,154.72/150,903.96 = 108,158.42/x
3. Step 3: Cross multiply
   109,154.72x = 150,903.96 × 108,158.42
4. Step 4: Simplify right side
   109,154.72x = 16,321,533,885.34
5. Step 5: Solve for x
   x = 16,321,533,885.34/109,154.72
6. Step 6: Final answer
   x = 149,526.60