Finding the Fourth Proportional to 67,979.91, 93,479.55 and 59,011.71

Step by Step Solution

1. Step 1: Write the proportion equation
   67,979.91 : 93,479.55 = 59,011.71 : x
2. Step 2: Convert to fraction form
   67,979.91/93,479.55 = 59,011.71/x
3. Step 3: Cross multiply
   67,979.91x = 93,479.55 × 59,011.71
4. Step 4: Simplify right side
   67,979.91x = 5,516,388,095.53
5. Step 5: Solve for x
   x = 5,516,388,095.53/67,979.91
6. Step 6: Final answer
   x = 81,147.33