Finding the Fourth Proportional to 49,665.56, 68,566.70 and 39,561.62

Step by Step Solution

1. Step 1: Write the proportion equation
   49,665.56 : 68,566.70 = 39,561.62 : x
2. Step 2: Convert to fraction form
   49,665.56/68,566.70 = 39,561.62/x
3. Step 3: Cross multiply
   49,665.56x = 68,566.70 × 39,561.62
4. Step 4: Simplify right side
   49,665.56x = 2,712,609,486.12
5. Step 5: Solve for x
   x = 2,712,609,486.12/49,665.56
6. Step 6: Final answer
   x = 54,617.52