Finding the Fourth Proportional to 62,536.89, 86,242.60 and 57,892.56

Step by Step Solution

1. Step 1: Write the proportion equation
   62,536.89 : 86,242.60 = 57,892.56 : x
2. Step 2: Convert to fraction form
   62,536.89/86,242.60 = 57,892.56/x
3. Step 3: Cross multiply
   62,536.89x = 86,242.60 × 57,892.56
4. Step 4: Simplify right side
   62,536.89x = 4,992,804,644.01
5. Step 5: Solve for x
   x = 4,992,804,644.01/62,536.89
6. Step 6: Final answer
   x = 79,837.75