Finding the Fourth Proportional to 92,697.39, 139,046.09 and 42,762.72

Step by Step Solution

1. Step 1: Write the proportion equation
   92,697.39 : 139,046.09 = 42,762.72 : x
2. Step 2: Convert to fraction form
   92,697.39/139,046.09 = 42,762.72/x
3. Step 3: Cross multiply
   92,697.39x = 139,046.09 × 42,762.72
4. Step 4: Simplify right side
   92,697.39x = 5,945,988,799.95
5. Step 5: Solve for x
   x = 5,945,988,799.95/92,697.39
6. Step 6: Final answer
   x = 64,144.08