Finding the Fourth Proportional to 109,364.72, 163,862.39 and 67,156.83

Step by Step Solution

1. Step 1: Write the proportion equation
   109,364.72 : 163,862.39 = 67,156.83 : x
2. Step 2: Convert to fraction form
   109,364.72/163,862.39 = 67,156.83/x
3. Step 3: Cross multiply
   109,364.72x = 163,862.39 × 67,156.83
4. Step 4: Simplify right side
   109,364.72x = 11,004,478,836.52
5. Step 5: Solve for x
   x = 11,004,478,836.52/109,364.72
6. Step 6: Final answer
   x = 100,621.84