Finding the Fourth Proportional to 112,648.61, 155,444.53 and 67,317.57

Step by Step Solution

1. Step 1: Write the proportion equation
   112,648.61 : 155,444.53 = 67,317.57 : x
2. Step 2: Convert to fraction form
   112,648.61/155,444.53 = 67,317.57/x
3. Step 3: Cross multiply
   112,648.61x = 155,444.53 × 67,317.57
4. Step 4: Simplify right side
   112,648.61x = 10,464,148,029.39
5. Step 5: Solve for x
   x = 10,464,148,029.39/112,648.61
6. Step 6: Final answer
   x = 92,891.94