Finding the Fourth Proportional to 137,404.85, 206,136.69 and 42,632.99

Step by Step Solution

1. Step 1: Write the proportion equation
   137,404.85 : 206,136.69 = 42,632.99 : x
2. Step 2: Convert to fraction form
   137,404.85/206,136.69 = 42,632.99/x
3. Step 3: Cross multiply
   137,404.85x = 206,136.69 × 42,632.99
4. Step 4: Simplify right side
   137,404.85x = 8,788,222,412.72
5. Step 5: Solve for x
   x = 8,788,222,412.72/137,404.85
6. Step 6: Final answer
   x = 63,958.61