Finding the Fourth Proportional to 112,464.74, 155,218.24 and 64,708.86

Step by Step Solution

1. Step 1: Write the proportion equation
   112,464.74 : 155,218.24 = 64,708.86 : x
2. Step 2: Convert to fraction form
   112,464.74/155,218.24 = 64,708.86/x
3. Step 3: Cross multiply
   112,464.74x = 155,218.24 × 64,708.86
4. Step 4: Simplify right side
   112,464.74x = 10,043,995,361.61
5. Step 5: Solve for x
   x = 10,043,995,361.61/112,464.74
6. Step 6: Final answer
   x = 89,307.95