Finding the Fourth Proportional to 78,453.33, 108,265.76 and 42,643.26

Step by Step Solution

1. Step 1: Write the proportion equation
   78,453.33 : 108,265.76 = 42,643.26 : x
2. Step 2: Convert to fraction form
   78,453.33/108,265.76 = 42,643.26/x
3. Step 3: Cross multiply
   78,453.33x = 108,265.76 × 42,643.26
4. Step 4: Simplify right side
   78,453.33x = 4,616,804,739.56
5. Step 5: Solve for x
   x = 4,616,804,739.56/78,453.33
6. Step 6: Final answer
   x = 58,847.79