Finding the Fourth Proportional to 137,043.81, 205,601.18 and 42,271.92

Step by Step Solution

1. Step 1: Write the proportion equation
   137,043.81 : 205,601.18 = 42,271.92 : x
2. Step 2: Convert to fraction form
   137,043.81/205,601.18 = 42,271.92/x
3. Step 3: Cross multiply
   137,043.81x = 205,601.18 × 42,271.92
4. Step 4: Simplify right side
   137,043.81x = 8,691,156,421.51
5. Step 5: Solve for x
   x = 8,691,156,421.51/137,043.81
6. Step 6: Final answer
   x = 63,418.82