Finding the Fourth Proportional to 213,068.52, 319,519.71 and 79,876.17

Step by Step Solution

1. Step 1: Write the proportion equation
   213,068.52 : 319,519.71 = 79,876.17 : x
2. Step 2: Convert to fraction form
   213,068.52/319,519.71 = 79,876.17/x
3. Step 3: Cross multiply
   213,068.52x = 319,519.71 × 79,876.17
4. Step 4: Simplify right side
   213,068.52x = 25,522,010,674.31
5. Step 5: Solve for x
   x = 25,522,010,674.31/213,068.52
6. Step 6: Final answer
   x = 119,783.11