Finding the Fourth Proportional to 109,418.56, 150,980.88 and 61,671.04

Step by Step Solution

1. Step 1: Write the proportion equation
   109,418.56 : 150,980.88 = 61,671.04 : x
2. Step 2: Convert to fraction form
   109,418.56/150,980.88 = 61,671.04/x
3. Step 3: Cross multiply
   109,418.56x = 150,980.88 × 61,671.04
4. Step 4: Simplify right side
   109,418.56x = 9,311,147,889.72
5. Step 5: Solve for x
   x = 9,311,147,889.72/109,418.56
6. Step 6: Final answer
   x = 85,096.60