Finding the Fourth Proportional to 200,158.28, 276,215.96 and 109,513.12

Step by Step Solution

1. Step 1: Write the proportion equation
   200,158.28 : 276,215.96 = 109,513.12 : x
2. Step 2: Convert to fraction form
   200,158.28/276,215.96 = 109,513.12/x
3. Step 3: Cross multiply
   200,158.28x = 276,215.96 × 109,513.12
4. Step 4: Simplify right side
   200,158.28x = 30,249,271,573.40
5. Step 5: Solve for x
   x = 30,249,271,573.40/200,158.28
6. Step 6: Final answer
   x = 151,126.76