Finding the Fourth Proportional to 89,730.99, 123,727.64 and 57,423.33

Step by Step Solution

1. Step 1: Write the proportion equation
   89,730.99 : 123,727.64 = 57,423.33 : x
2. Step 2: Convert to fraction form
   89,730.99/123,727.64 = 57,423.33/x
3. Step 3: Cross multiply
   89,730.99x = 123,727.64 × 57,423.33
4. Step 4: Simplify right side
   89,730.99x = 7,104,852,814.72
5. Step 5: Solve for x
   x = 7,104,852,814.72/89,730.99
6. Step 6: Final answer
   x = 79,179.48