Finding the Fourth Proportional to 109,373.48, 150,949.32 and 61,638.56

Step by Step Solution

1. Step 1: Write the proportion equation
   109,373.48 : 150,949.32 = 61,638.56 : x
2. Step 2: Convert to fraction form
   109,373.48/150,949.32 = 61,638.56/x
3. Step 3: Cross multiply
   109,373.48x = 150,949.32 × 61,638.56
4. Step 4: Simplify right side
   109,373.48x = 9,304,298,717.78
5. Step 5: Solve for x
   x = 9,304,298,717.78/109,373.48
6. Step 6: Final answer
   x = 85,069.06