Finding the Fourth Proportional to 109,910.79, 151,628.74 and 64,568.32

Step by Step Solution

1. Step 1: Write the proportion equation
   109,910.79 : 151,628.74 = 64,568.32 : x
2. Step 2: Convert to fraction form
   109,910.79/151,628.74 = 64,568.32/x
3. Step 3: Cross multiply
   109,910.79x = 151,628.74 × 64,568.32
4. Step 4: Simplify right side
   109,910.79x = 9,790,413,005.52
5. Step 5: Solve for x
   x = 9,790,413,005.52/109,910.79
6. Step 6: Final answer
   x = 89,076.00