Finding the Fourth Proportional to 79,138.69, 109,211.42 and 43,331.02

Step by Step Solution

1. Step 1: Write the proportion equation
   79,138.69 : 109,211.42 = 43,331.02 : x
2. Step 2: Convert to fraction form
   79,138.69/109,211.42 = 43,331.02/x
3. Step 3: Cross multiply
   79,138.69x = 109,211.42 × 43,331.02
4. Step 4: Simplify right side
   79,138.69x = 4,732,242,059.55
5. Step 5: Solve for x
   x = 4,732,242,059.55/79,138.69
6. Step 6: Final answer
   x = 59,796.82