Finding the Fourth Proportional to 314,213.72, 471,249.52 and 89,569.36

Step by Step Solution

1. Step 1: Write the proportion equation
   314,213.72 : 471,249.52 = 89,569.36 : x
2. Step 2: Convert to fraction form
   314,213.72/471,249.52 = 89,569.36/x
3. Step 3: Cross multiply
   314,213.72x = 471,249.52 × 89,569.36
4. Step 4: Simplify right side
   314,213.72x = 42,209,517,906.71
5. Step 5: Solve for x
   x = 42,209,517,906.71/314,213.72
6. Step 6: Final answer
   x = 134,333.78