Finding the Fourth Proportional to 109,156.89, 150,635.91 and 61,410.54

Step by Step Solution

1. Step 1: Write the proportion equation
   109,156.89 : 150,635.91 = 61,410.54 : x
2. Step 2: Convert to fraction form
   109,156.89/150,635.91 = 61,410.54/x
3. Step 3: Cross multiply
   109,156.89x = 150,635.91 × 61,410.54
4. Step 4: Simplify right side
   109,156.89x = 9,250,632,576.49
5. Step 5: Solve for x
   x = 9,250,632,576.49/109,156.89
6. Step 6: Final answer
   x = 84,746.21