Finding the Fourth Proportional to 79,618.35, 109,811.10 and 49,386.72

Step by Step Solution

1. Step 1: Write the proportion equation
   79,618.35 : 109,811.10 = 49,386.72 : x
2. Step 2: Convert to fraction form
   79,618.35/109,811.10 = 49,386.72/x
3. Step 3: Cross multiply
   79,618.35x = 109,811.10 × 49,386.72
4. Step 4: Simplify right side
   79,618.35x = 5,423,210,048.59
5. Step 5: Solve for x
   x = 5,423,210,048.59/79,618.35
6. Step 6: Final answer
   x = 68,115.08