Finding the Fourth Proportional to 89,979.69, 124,171.97 and 52,256.37

Step by Step Solution

1. Step 1: Write the proportion equation
   89,979.69 : 124,171.97 = 52,256.37 : x
2. Step 2: Convert to fraction form
   89,979.69/124,171.97 = 52,256.37/x
3. Step 3: Cross multiply
   89,979.69x = 124,171.97 × 52,256.37
4. Step 4: Simplify right side
   89,979.69x = 6,488,776,097.52
5. Step 5: Solve for x
   x = 6,488,776,097.52/89,979.69
6. Step 6: Final answer
   x = 72,113.79