Finding the Fourth Proportional to 200,308.91, 276,429.56 and 109,663.35

Step by Step Solution

1. Step 1: Write the proportion equation
   200,308.91 : 276,429.56 = 109,663.35 : x
2. Step 2: Convert to fraction form
   200,308.91/276,429.56 = 109,663.35/x
3. Step 3: Cross multiply
   200,308.91x = 276,429.56 × 109,663.35
4. Step 4: Simplify right side
   200,308.91x = 30,314,191,040.31
5. Step 5: Solve for x
   x = 30,314,191,040.31/200,308.91
6. Step 6: Final answer
   x = 151,337.21