Finding the Fourth Proportional to 79,580.12, 119,139.78 and 59,941.40

Step by Step Solution

1. Step 1: Write the proportion equation
   79,580.12 : 119,139.78 = 59,941.40 : x
2. Step 2: Convert to fraction form
   79,580.12/119,139.78 = 59,941.40/x
3. Step 3: Cross multiply
   79,580.12x = 119,139.78 × 59,941.40
4. Step 4: Simplify right side
   79,580.12x = 7,141,405,208.89
5. Step 5: Solve for x
   x = 7,141,405,208.89/79,580.12
6. Step 6: Final answer
   x = 89,738.56