Finding the Fourth Proportional to 109,221.31, 163,890.83 and 46,085.19

Step by Step Solution

1. Step 1: Write the proportion equation
   109,221.31 : 163,890.83 = 46,085.19 : x
2. Step 2: Convert to fraction form
   109,221.31/163,890.83 = 46,085.19/x
3. Step 3: Cross multiply
   109,221.31x = 163,890.83 × 46,085.19
4. Step 4: Simplify right side
   109,221.31x = 7,552,940,039.81
5. Step 5: Solve for x
   x = 7,552,940,039.81/109,221.31
6. Step 6: Final answer
   x = 69,152.62