Finding the Fourth Proportional to 78,169.08, 107,897.82 and 49,874.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,169.08 : 107,897.82 = 49,874.72 : x
2. Step 2: Convert to fraction form
   78,169.08/107,897.82 = 49,874.72/x
3. Step 3: Cross multiply
   78,169.08x = 107,897.82 × 49,874.72
4. Step 4: Simplify right side
   78,169.08x = 5,381,373,561.11
5. Step 5: Solve for x
   x = 5,381,373,561.11/78,169.08
6. Step 6: Final answer
   x = 68,842.74