Finding the Fourth Proportional to 209,404.08, 288,932.00 and 118,739.61

Step by Step Solution

1. Step 1: Write the proportion equation
   209,404.08 : 288,932.00 = 118,739.61 : x
2. Step 2: Convert to fraction form
   209,404.08/288,932.00 = 118,739.61/x
3. Step 3: Cross multiply
   209,404.08x = 288,932.00 × 118,739.61
4. Step 4: Simplify right side
   209,404.08x = 34,307,672,402.82
5. Step 5: Solve for x
   x = 34,307,672,402.82/209,404.08
6. Step 6: Final answer
   x = 163,834.78