Finding the Fourth Proportional to 79,168.84, 109,253.14 and 42,870.68

Step by Step Solution

1. Step 1: Write the proportion equation
   79,168.84 : 109,253.14 = 42,870.68 : x
2. Step 2: Convert to fraction form
   79,168.84/109,253.14 = 42,870.68/x
3. Step 3: Cross multiply
   79,168.84x = 109,253.14 × 42,870.68
4. Step 4: Simplify right side
   79,168.84x = 4,683,756,403.94
5. Step 5: Solve for x
   x = 4,683,756,403.94/79,168.84
6. Step 6: Final answer
   x = 59,161.61