Finding the Fourth Proportional to 92,826.02, 139,216.76 and 42,858.12

Step by Step Solution

1. Step 1: Write the proportion equation
   92,826.02 : 139,216.76 = 42,858.12 : x
2. Step 2: Convert to fraction form
   92,826.02/139,216.76 = 42,858.12/x
3. Step 3: Cross multiply
   92,826.02x = 139,216.76 × 42,858.12
4. Step 4: Simplify right side
   92,826.02x = 5,966,568,606.09
5. Step 5: Solve for x
   x = 5,966,568,606.09/92,826.02
6. Step 6: Final answer
   x = 64,276.90