Finding the Fourth Proportional to 287,300.14, 396,466.06 and 156,474.82

Step by Step Solution

1. Step 1: Write the proportion equation
   287,300.14 : 396,466.06 = 156,474.82 : x
2. Step 2: Convert to fraction form
   287,300.14/396,466.06 = 156,474.82/x
3. Step 3: Cross multiply
   287,300.14x = 396,466.06 × 156,474.82
4. Step 4: Simplify right side
   287,300.14x = 62,036,955,374.61
5. Step 5: Solve for x
   x = 62,036,955,374.61/287,300.14
6. Step 6: Final answer
   x = 215,930.82