Finding the Fourth Proportional to 139,689.38, 209,555.94 and 46,217.00

Step by Step Solution

1. Step 1: Write the proportion equation
   139,689.38 : 209,555.94 = 46,217.00 : x
2. Step 2: Convert to fraction form
   139,689.38/209,555.94 = 46,217.00/x
3. Step 3: Cross multiply
   139,689.38x = 209,555.94 × 46,217.00
4. Step 4: Simplify right side
   139,689.38x = 9,685,045,831.20
5. Step 5: Solve for x
   x = 9,685,045,831.20/139,689.38
6. Step 6: Final answer
   x = 69,332.73