Finding the Fourth Proportional to 342,687.76, 514,086.72 and 117,992.95

Step by Step Solution

1. Step 1: Write the proportion equation
   342,687.76 : 514,086.72 = 117,992.95 : x
2. Step 2: Convert to fraction form
   342,687.76/514,086.72 = 117,992.95/x
3. Step 3: Cross multiply
   342,687.76x = 514,086.72 × 117,992.95
4. Step 4: Simplify right side
   342,687.76x = 60,658,608,648.62
5. Step 5: Solve for x
   x = 60,658,608,648.62/342,687.76
6. Step 6: Final answer
   x = 177,008.39