Finding the Fourth Proportional to 109,492.40, 164,243.46 and 42,926.60

Step by Step Solution

1. Step 1: Write the proportion equation
   109,492.40 : 164,243.46 = 42,926.60 : x
2. Step 2: Convert to fraction form
   109,492.40/164,243.46 = 42,926.60/x
3. Step 3: Cross multiply
   109,492.40x = 164,243.46 × 42,926.60
4. Step 4: Simplify right side
   109,492.40x = 7,050,413,310.04
5. Step 5: Solve for x
   x = 7,050,413,310.04/109,492.40
6. Step 6: Final answer
   x = 64,391.81