Finding the Fourth Proportional to 78,807.08, 108,749.76 and 42,996.80

Step by Step Solution

1. Step 1: Write the proportion equation
   78,807.08 : 108,749.76 = 42,996.80 : x
2. Step 2: Convert to fraction form
   78,807.08/108,749.76 = 42,996.80/x
3. Step 3: Cross multiply
   78,807.08x = 108,749.76 × 42,996.80
4. Step 4: Simplify right side
   78,807.08x = 4,675,891,137.02
5. Step 5: Solve for x
   x = 4,675,891,137.02/78,807.08
6. Step 6: Final answer
   x = 59,333.39