Finding the Fourth Proportional to 113,483.72, 170,066.24 and 89,686.64

Step by Step Solution

1. Step 1: Write the proportion equation
   113,483.72 : 170,066.24 = 89,686.64 : x
2. Step 2: Convert to fraction form
   113,483.72/170,066.24 = 89,686.64/x
3. Step 3: Cross multiply
   113,483.72x = 170,066.24 × 89,686.64
4. Step 4: Simplify right side
   113,483.72x = 15,252,669,643.03
5. Step 5: Solve for x
   x = 15,252,669,643.03/113,483.72
6. Step 6: Final answer
   x = 134,404.03