Finding the Fourth Proportional to 53,918.19, 80,948.61 and 46,071

Step by Step Solution

1. Step 1: Write the proportion equation
   53,918.19 : 80,948.61 = 46,071 : x
2. Step 2: Convert to fraction form
   53,918.19/80,948.61 = 46,071/x
3. Step 3: Cross multiply
   53,918.19x = 80,948.61 × 46,071
4. Step 4: Simplify right side
   53,918.19x = 3,729,383,411.31
5. Step 5: Solve for x
   x = 3,729,383,411.31/53,918.19
6. Step 6: Final answer
   x = 69,167.44