Finding the Fourth Proportional to 92,856.32, 139,268.02 and 42,243.59

Step by Step Solution

1. Step 1: Write the proportion equation
   92,856.32 : 139,268.02 = 42,243.59 : x
2. Step 2: Convert to fraction form
   92,856.32/139,268.02 = 42,243.59/x
3. Step 3: Cross multiply
   92,856.32x = 139,268.02 × 42,243.59
4. Step 4: Simplify right side
   92,856.32x = 5,883,181,136.99
5. Step 5: Solve for x
   x = 5,883,181,136.99/92,856.32
6. Step 6: Final answer
   x = 63,357.90