Finding the Fourth Proportional to 46,386.54, 69,582.69 and 13,109.15

Step by Step Solution

1. Step 1: Write the proportion equation
   46,386.54 : 69,582.69 = 13,109.15 : x
2. Step 2: Convert to fraction form
   46,386.54/69,582.69 = 13,109.15/x
3. Step 3: Cross multiply
   46,386.54x = 69,582.69 × 13,109.15
4. Step 4: Simplify right side
   46,386.54x = 912,169,920.61
5. Step 5: Solve for x
   x = 912,169,920.61/46,386.54
6. Step 6: Final answer
   x = 19,664.54