Finding the Fourth Proportional to 287,498.84, 396,748.32 and 160,182.56

Step by Step Solution

1. Step 1: Write the proportion equation
   287,498.84 : 396,748.32 = 160,182.56 : x
2. Step 2: Convert to fraction form
   287,498.84/396,748.32 = 160,182.56/x
3. Step 3: Cross multiply
   287,498.84x = 396,748.32 × 160,182.56
4. Step 4: Simplify right side
   287,498.84x = 63,552,161,573.30
5. Step 5: Solve for x
   x = 63,552,161,573.30/287,498.84
6. Step 6: Final answer
   x = 221,051.89