Finding the Fourth Proportional to 297,123.39, 445,641.24 and 86,704.83

Step by Step Solution

1. Step 1: Write the proportion equation
   297,123.39 : 445,641.24 = 86,704.83 : x
2. Step 2: Convert to fraction form
   297,123.39/445,641.24 = 86,704.83/x
3. Step 3: Cross multiply
   297,123.39x = 445,641.24 × 86,704.83
4. Step 4: Simplify right side
   297,123.39x = 38,639,245,510.22
5. Step 5: Solve for x
   x = 38,639,245,510.22/297,123.39
6. Step 6: Final answer
   x = 130,044.44