Finding the Fourth Proportional to 137,039.96, 205,582.12 and 42,247.98

Step by Step Solution

1. Step 1: Write the proportion equation
   137,039.96 : 205,582.12 = 42,247.98 : x
2. Step 2: Convert to fraction form
   137,039.96/205,582.12 = 42,247.98/x
3. Step 3: Cross multiply
   137,039.96x = 205,582.12 × 42,247.98
4. Step 4: Simplify right side
   137,039.96x = 8,685,429,294.12
5. Step 5: Solve for x
   x = 8,685,429,294.12/137,039.96
6. Step 6: Final answer
   x = 63,378.81