Finding the Fourth Proportional to 487,150.32, 731,388.12 and 274,068.18

Step by Step Solution

1. Step 1: Write the proportion equation
   487,150.32 : 731,388.12 = 274,068.18 : x
2. Step 2: Convert to fraction form
   487,150.32/731,388.12 = 274,068.18/x
3. Step 3: Cross multiply
   487,150.32x = 731,388.12 × 274,068.18
4. Step 4: Simplify right side
   487,150.32x = 200,450,210,922.02
5. Step 5: Solve for x
   x = 200,450,210,922.02/487,150.32
6. Step 6: Final answer
   x = 411,475.07