Finding the Fourth Proportional to 272,499.34, 408,810.51 and 82,976.65

Step by Step Solution

1. Step 1: Write the proportion equation
   272,499.34 : 408,810.51 = 82,976.65 : x
2. Step 2: Convert to fraction form
   272,499.34/408,810.51 = 82,976.65/x
3. Step 3: Cross multiply
   272,499.34x = 408,810.51 × 82,976.65
4. Step 4: Simplify right side
   272,499.34x = 33,921,724,560.54
5. Step 5: Solve for x
   x = 33,921,724,560.54/272,499.34
6. Step 6: Final answer
   x = 124,483.70