Finding the Fourth Proportional to 78,168.09, 107,815.00 and 49,492.42

Step by Step Solution

1. Step 1: Write the proportion equation
   78,168.09 : 107,815.00 = 49,492.42 : x
2. Step 2: Convert to fraction form
   78,168.09/107,815.00 = 49,492.42/x
3. Step 3: Cross multiply
   78,168.09x = 107,815.00 × 49,492.42
4. Step 4: Simplify right side
   78,168.09x = 5,336,024,961.83
5. Step 5: Solve for x
   x = 5,336,024,961.83/78,168.09
6. Step 6: Final answer
   x = 68,263.47