Finding the Fourth Proportional to 111,506.84, 153,667.02 and 109,457.20

Step by Step Solution

1. Step 1: Write the proportion equation
   111,506.84 : 153,667.02 = 109,457.20 : x
2. Step 2: Convert to fraction form
   111,506.84/153,667.02 = 109,457.20/x
3. Step 3: Cross multiply
   111,506.84x = 153,667.02 × 109,457.20
4. Step 4: Simplify right side
   111,506.84x = 16,819,961,741.54
5. Step 5: Solve for x
   x = 16,819,961,741.54/111,506.84
6. Step 6: Final answer
   x = 150,842.42