Finding the Fourth Proportional to 209,084.76, 288,473.40 and 118,426.32

Step by Step Solution

1. Step 1: Write the proportion equation
   209,084.76 : 288,473.40 = 118,426.32 : x
2. Step 2: Convert to fraction form
   209,084.76/288,473.40 = 118,426.32/x
3. Step 3: Cross multiply
   209,084.76x = 288,473.40 × 118,426.32
4. Step 4: Simplify right side
   209,084.76x = 34,162,843,179.89
5. Step 5: Solve for x
   x = 34,162,843,179.89/209,084.76
6. Step 6: Final answer
   x = 163,392.32