Finding the Fourth Proportional to 69,874.50, 96,434.10 and 39,667.98

Step by Step Solution

1. Step 1: Write the proportion equation
   69,874.50 : 96,434.10 = 39,667.98 : x
2. Step 2: Convert to fraction form
   69,874.50/96,434.10 = 39,667.98/x
3. Step 3: Cross multiply
   69,874.50x = 96,434.10 × 39,667.98
4. Step 4: Simplify right side
   69,874.50x = 3,825,345,950.12
5. Step 5: Solve for x
   x = 3,825,345,950.12/69,874.50
6. Step 6: Final answer
   x = 54,745.95