Finding the Fourth Proportional to 92,727.33, 138,976.98 and 42,738.05

Step by Step Solution

1. Step 1: Write the proportion equation
   92,727.33 : 138,976.98 = 42,738.05 : x
2. Step 2: Convert to fraction form
   92,727.33/138,976.98 = 42,738.05/x
3. Step 3: Cross multiply
   92,727.33x = 138,976.98 × 42,738.05
4. Step 4: Simplify right side
   92,727.33x = 5,939,604,425.20
5. Step 5: Solve for x
   x = 5,939,604,425.20/92,727.33
6. Step 6: Final answer
   x = 64,054.52