Finding the Fourth Proportional to 92,814.37, 139,287.94 and 39,543.68

Step by Step Solution

1. Step 1: Write the proportion equation
   92,814.37 : 139,287.94 = 39,543.68 : x
2. Step 2: Convert to fraction form
   92,814.37/139,287.94 = 39,543.68/x
3. Step 3: Cross multiply
   92,814.37x = 139,287.94 × 39,543.68
4. Step 4: Simplify right side
   92,814.37x = 5,507,957,529.50
5. Step 5: Solve for x
   x = 5,507,957,529.50/92,814.37
6. Step 6: Final answer
   x = 59,343.80