Finding the Fourth Proportional to 79,154.84, 109,233.84 and 42,856.66

Step by Step Solution

1. Step 1: Write the proportion equation
   79,154.84 : 109,233.84 = 42,856.66 : x
2. Step 2: Convert to fraction form
   79,154.84/109,233.84 = 42,856.66/x
3. Step 3: Cross multiply
   79,154.84x = 109,233.84 × 42,856.66
4. Step 4: Simplify right side
   79,154.84x = 4,681,397,541.37
5. Step 5: Solve for x
   x = 4,681,397,541.37/79,154.84
6. Step 6: Final answer
   x = 59,142.28