Finding the Fourth Proportional to 112,745.88, 155,571.03 and 67,442.58

Step by Step Solution

1. Step 1: Write the proportion equation
   112,745.88 : 155,571.03 = 67,442.58 : x
2. Step 2: Convert to fraction form
   112,745.88/155,571.03 = 67,442.58/x
3. Step 3: Cross multiply
   112,745.88x = 155,571.03 × 67,442.58
4. Step 4: Simplify right side
   112,745.88x = 10,492,111,636.46
5. Step 5: Solve for x
   x = 10,492,111,636.46/112,745.88
6. Step 6: Final answer
   x = 93,059.82