Finding the Fourth Proportional to 139,369.68, 209,086.92 and 45,876.24

Step by Step Solution

1. Step 1: Write the proportion equation
   139,369.68 : 209,086.92 = 45,876.24 : x
2. Step 2: Convert to fraction form
   139,369.68/209,086.92 = 45,876.24/x
3. Step 3: Cross multiply
   139,369.68x = 209,086.92 × 45,876.24
4. Step 4: Simplify right side
   139,369.68x = 9,592,121,722.78
5. Step 5: Solve for x
   x = 9,592,121,722.78/139,369.68
6. Step 6: Final answer
   x = 68,825.03