Finding the Fourth Proportional to 79,096.47, 109,039.61 and 56,396.09

Step by Step Solution

1. Step 1: Write the proportion equation
   79,096.47 : 109,039.61 = 56,396.09 : x
2. Step 2: Convert to fraction form
   79,096.47/109,039.61 = 56,396.09/x
3. Step 3: Cross multiply
   79,096.47x = 109,039.61 × 56,396.09
4. Step 4: Simplify right side
   79,096.47x = 6,149,406,831.95
5. Step 5: Solve for x
   x = 6,149,406,831.95/79,096.47
6. Step 6: Final answer
   x = 77,745.65