Finding the Fourth Proportional to 137,103.46, 205,579.82 and 42,307.79

Step by Step Solution

1. Step 1: Write the proportion equation
   137,103.46 : 205,579.82 = 42,307.79 : x
2. Step 2: Convert to fraction form
   137,103.46/205,579.82 = 42,307.79/x
3. Step 3: Cross multiply
   137,103.46x = 205,579.82 × 42,307.79
4. Step 4: Simplify right side
   137,103.46x = 8,697,626,930.67
5. Step 5: Solve for x
   x = 8,697,626,930.67/137,103.46
6. Step 6: Final answer
   x = 63,438.42