Finding the Fourth Proportional to 115,553, 159,464.20 and 67,807.12

Step by Step Solution

1. Step 1: Write the proportion equation
   115,553 : 159,464.20 = 67,807.12 : x
2. Step 2: Convert to fraction form
   115,553/159,464.20 = 67,807.12/x
3. Step 3: Cross multiply
   115,553x = 159,464.20 × 67,807.12
4. Step 4: Simplify right side
   115,553x = 10,812,808,145.10
5. Step 5: Solve for x
   x = 10,812,808,145.10/115,553
6. Step 6: Final answer
   x = 93,574.45