Finding the Fourth Proportional to 79,401.23, 109,500.56 and 53,945.70

Step by Step Solution

1. Step 1: Write the proportion equation
   79,401.23 : 109,500.56 = 53,945.70 : x
2. Step 2: Convert to fraction form
   79,401.23/109,500.56 = 53,945.70/x
3. Step 3: Cross multiply
   79,401.23x = 109,500.56 × 53,945.70
4. Step 4: Simplify right side
   79,401.23x = 5,907,083,881.53
5. Step 5: Solve for x
   x = 5,907,083,881.53/79,401.23
6. Step 6: Final answer
   x = 74,395.37