Finding the Fourth Proportional to 297,016.28, 445,555.57 and 83,782.50

Step by Step Solution

1. Step 1: Write the proportion equation
   297,016.28 : 445,555.57 = 83,782.50 : x
2. Step 2: Convert to fraction form
   297,016.28/445,555.57 = 83,782.50/x
3. Step 3: Cross multiply
   297,016.28x = 445,555.57 × 83,782.50
4. Step 4: Simplify right side
   297,016.28x = 37,329,760,326.58
5. Step 5: Solve for x
   x = 37,329,760,326.58/297,016.28
6. Step 6: Final answer
   x = 125,682.54