Finding the Fourth Proportional to 78,553.07, 108,404.53 and 42,743.26

Step by Step Solution

1. Step 1: Write the proportion equation
   78,553.07 : 108,404.53 = 42,743.26 : x
2. Step 2: Convert to fraction form
   78,553.07/108,404.53 = 42,743.26/x
3. Step 3: Cross multiply
   78,553.07x = 108,404.53 × 42,743.26
4. Step 4: Simplify right side
   78,553.07x = 4,633,562,633.10
5. Step 5: Solve for x
   x = 4,633,562,633.10/78,553.07
6. Step 6: Final answer
   x = 58,986.40