Finding the Fourth Proportional to 78,642.82, 108,537.81 and 46,386.55

Step by Step Solution

1. Step 1: Write the proportion equation
   78,642.82 : 108,537.81 = 46,386.55 : x
2. Step 2: Convert to fraction form
   78,642.82/108,537.81 = 46,386.55/x
3. Step 3: Cross multiply
   78,642.82x = 108,537.81 × 46,386.55
4. Step 4: Simplify right side
   78,642.82x = 5,034,694,512.18
5. Step 5: Solve for x
   x = 5,034,694,512.18/78,642.82
6. Step 6: Final answer
   x = 64,019.76