Finding the Fourth Proportional to 112,492.05, 155,241.47 and 67,161.58

Step by Step Solution

1. Step 1: Write the proportion equation
   112,492.05 : 155,241.47 = 67,161.58 : x
2. Step 2: Convert to fraction form
   112,492.05/155,241.47 = 67,161.58/x
3. Step 3: Cross multiply
   112,492.05x = 155,241.47 × 67,161.58
4. Step 4: Simplify right side
   112,492.05x = 10,426,262,406.72
5. Step 5: Solve for x
   x = 10,426,262,406.72/112,492.05
6. Step 6: Final answer
   x = 92,684.44