Finding the Fourth Proportional to 89,527.48, 123,559.83 and 57,788.64

Step by Step Solution

1. Step 1: Write the proportion equation
   89,527.48 : 123,559.83 = 57,788.64 : x
2. Step 2: Convert to fraction form
   89,527.48/123,559.83 = 57,788.64/x
3. Step 3: Cross multiply
   89,527.48x = 123,559.83 × 57,788.64
4. Step 4: Simplify right side
   89,527.48x = 7,140,354,534.33
5. Step 5: Solve for x
   x = 7,140,354,534.33/89,527.48
6. Step 6: Final answer
   x = 79,756.01