Finding the Fourth Proportional to 78,053.83, 107,713.87 and 42,243.80

Step by Step Solution

1. Step 1: Write the proportion equation
   78,053.83 : 107,713.87 = 42,243.80 : x
2. Step 2: Convert to fraction form
   78,053.83/107,713.87 = 42,243.80/x
3. Step 3: Cross multiply
   78,053.83x = 107,713.87 × 42,243.80
4. Step 4: Simplify right side
   78,053.83x = 4,550,242,537.33
5. Step 5: Solve for x
   x = 4,550,242,537.33/78,053.83
6. Step 6: Final answer
   x = 58,296.21