Finding the Fourth Proportional to 89,423.22, 123,424.38 and 59,209.68

Step by Step Solution

1. Step 1: Write the proportion equation
   89,423.22 : 123,424.38 = 59,209.68 : x
2. Step 2: Convert to fraction form
   89,423.22/123,424.38 = 59,209.68/x
3. Step 3: Cross multiply
   89,423.22x = 123,424.38 × 59,209.68
4. Step 4: Simplify right side
   89,423.22x = 7,307,918,044.00
5. Step 5: Solve for x
   x = 7,307,918,044.00/89,423.22
6. Step 6: Final answer
   x = 81,722.82