Finding the Fourth Proportional to 78,997.12, 109,013.67 and 43,186.41

Step by Step Solution

1. Step 1: Write the proportion equation
   78,997.12 : 109,013.67 = 43,186.41 : x
2. Step 2: Convert to fraction form
   78,997.12/109,013.67 = 43,186.41/x
3. Step 3: Cross multiply
   78,997.12x = 109,013.67 × 43,186.41
4. Step 4: Simplify right side
   78,997.12x = 4,707,909,048.22
5. Step 5: Solve for x
   x = 4,707,909,048.22/78,997.12
6. Step 6: Final answer
   x = 59,595.96