Finding the Fourth Proportional to 62,678.36, 86,499.96 and 41,420.72

Step by Step Solution

1. Step 1: Write the proportion equation
   62,678.36 : 86,499.96 = 41,420.72 : x
2. Step 2: Convert to fraction form
   62,678.36/86,499.96 = 41,420.72/x
3. Step 3: Cross multiply
   62,678.36x = 86,499.96 × 41,420.72
4. Step 4: Simplify right side
   62,678.36x = 3,582,890,623.17
5. Step 5: Solve for x
   x = 3,582,890,623.17/62,678.36
6. Step 6: Final answer
   x = 57,163.12