Finding the Fourth Proportional to 108,152.78, 149,249.28 and 60,406.82

Step by Step Solution

1. Step 1: Write the proportion equation
   108,152.78 : 149,249.28 = 60,406.82 : x
2. Step 2: Convert to fraction form
   108,152.78/149,249.28 = 60,406.82/x
3. Step 3: Cross multiply
   108,152.78x = 149,249.28 × 60,406.82
4. Step 4: Simplify right side
   108,152.78x = 9,015,674,392.09
5. Step 5: Solve for x
   x = 9,015,674,392.09/108,152.78
6. Step 6: Final answer
   x = 83,360.54