Finding the Fourth Proportional to 89,528.01, 123,526.29 and 57,658.56

Step by Step Solution

1. Step 1: Write the proportion equation
   89,528.01 : 123,526.29 = 57,658.56 : x
2. Step 2: Convert to fraction form
   89,528.01/123,526.29 = 57,658.56/x
3. Step 3: Cross multiply
   89,528.01x = 123,526.29 × 57,658.56
4. Step 4: Simplify right side
   89,528.01x = 7,122,348,003.54
5. Step 5: Solve for x
   x = 7,122,348,003.54/89,528.01
6. Step 6: Final answer
   x = 79,554.41