Finding the Fourth Proportional to 112,650.32, 155,464.95 and 64,906.74

Step by Step Solution

1. Step 1: Write the proportion equation
   112,650.32 : 155,464.95 = 64,906.74 : x
2. Step 2: Convert to fraction form
   112,650.32/155,464.95 = 64,906.74/x
3. Step 3: Cross multiply
   112,650.32x = 155,464.95 × 64,906.74
4. Step 4: Simplify right side
   112,650.32x = 10,090,723,221.76
5. Step 5: Solve for x
   x = 10,090,723,221.76/112,650.32
6. Step 6: Final answer
   x = 89,575.63