Finding the Fourth Proportional to 113,350.32, 156,436.92 and 64,969.56

Step by Step Solution

1. Step 1: Write the proportion equation
   113,350.32 : 156,436.92 = 64,969.56 : x
2. Step 2: Convert to fraction form
   113,350.32/156,436.92 = 64,969.56/x
3. Step 3: Cross multiply
   113,350.32x = 156,436.92 × 64,969.56
4. Step 4: Simplify right side
   113,350.32x = 10,163,637,860.16
5. Step 5: Solve for x
   x = 10,163,637,860.16/113,350.32
6. Step 6: Final answer
   x = 89,665.72