Finding the Fourth Proportional to 137,039.98, 205,595.34 and 42,268.02

Step by Step Solution

1. Step 1: Write the proportion equation
   137,039.98 : 205,595.34 = 42,268.02 : x
2. Step 2: Convert to fraction form
   137,039.98/205,595.34 = 42,268.02/x
3. Step 3: Cross multiply
   137,039.98x = 205,595.34 × 42,268.02
4. Step 4: Simplify right side
   137,039.98x = 8,690,107,943.03
5. Step 5: Solve for x
   x = 8,690,107,943.03/137,039.98
6. Step 6: Final answer
   x = 63,412.94