Finding the Fourth Proportional to 121,639, 167,858.56 and 67,922.52

Step by Step Solution

1. Step 1: Write the proportion equation
   121,639 : 167,858.56 = 67,922.52 : x
2. Step 2: Convert to fraction form
   121,639/167,858.56 = 67,922.52/x
3. Step 3: Cross multiply
   121,639x = 167,858.56 × 67,922.52
4. Step 4: Simplify right side
   121,639x = 11,401,376,398.77
5. Step 5: Solve for x
   x = 11,401,376,398.77/121,639
6. Step 6: Final answer
   x = 93,731.26