Finding the Fourth Proportional to 314,012.10, 471,023.55 and 89,378.31

Step by Step Solution

1. Step 1: Write the proportion equation
   314,012.10 : 471,023.55 = 89,378.31 : x
2. Step 2: Convert to fraction form
   314,012.10/471,023.55 = 89,378.31/x
3. Step 3: Cross multiply
   314,012.10x = 471,023.55 × 89,378.31
4. Step 4: Simplify right side
   314,012.10x = 42,099,288,869.20
5. Step 5: Solve for x
   x = 42,099,288,869.20/314,012.10
6. Step 6: Final answer
   x = 134,069.00