Finding the Fourth Proportional to 209,404.02, 288,913.59 and 118,755.30

Step by Step Solution

1. Step 1: Write the proportion equation
   209,404.02 : 288,913.59 = 118,755.30 : x
2. Step 2: Convert to fraction form
   209,404.02/288,913.59 = 118,755.30/x
3. Step 3: Cross multiply
   209,404.02x = 288,913.59 × 118,755.30
4. Step 4: Simplify right side
   209,404.02x = 34,310,020,054.53
5. Step 5: Solve for x
   x = 34,310,020,054.53/209,404.02
6. Step 6: Final answer
   x = 163,846.04