Finding the Fourth Proportional to 79,250.57, 109,377 and 49,045.63

Step by Step Solution

1. Step 1: Write the proportion equation
   79,250.57 : 109,377 = 49,045.63 : x
2. Step 2: Convert to fraction form
   79,250.57/109,377 = 49,045.63/x
3. Step 3: Cross multiply
   79,250.57x = 109,377 × 49,045.63
4. Step 4: Simplify right side
   79,250.57x = 5,364,463,872.51
5. Step 5: Solve for x
   x = 5,364,463,872.51/79,250.57
6. Step 6: Final answer
   x = 67,689.91