Finding the Fourth Proportional to 79,208.57, 109,404.93 and 64,118.27

Step by Step Solution

1. Step 1: Write the proportion equation
   79,208.57 : 109,404.93 = 64,118.27 : x
2. Step 2: Convert to fraction form
   79,208.57/109,404.93 = 64,118.27/x
3. Step 3: Cross multiply
   79,208.57x = 109,404.93 × 64,118.27
4. Step 4: Simplify right side
   79,208.57x = 7,014,854,294.05
5. Step 5: Solve for x
   x = 7,014,854,294.05/79,208.57
6. Step 6: Final answer
   x = 88,561.82