Finding the Fourth Proportional to 209,300.73, 288,833.52 and 113,807.49

Step by Step Solution

1. Step 1: Write the proportion equation
   209,300.73 : 288,833.52 = 113,807.49 : x
2. Step 2: Convert to fraction form
   209,300.73/288,833.52 = 113,807.49/x
3. Step 3: Cross multiply
   209,300.73x = 288,833.52 × 113,807.49
4. Step 4: Simplify right side
   209,300.73x = 32,871,417,939.06
5. Step 5: Solve for x
   x = 32,871,417,939.06/209,300.73
6. Step 6: Final answer
   x = 157,053.53