Finding the Fourth Proportional to 49,670.56, 74,538.24 and 45,665.92

Step by Step Solution

1. Step 1: Write the proportion equation
   49,670.56 : 74,538.24 = 45,665.92 : x
2. Step 2: Convert to fraction form
   49,670.56/74,538.24 = 45,665.92/x
3. Step 3: Cross multiply
   49,670.56x = 74,538.24 × 45,665.92
4. Step 4: Simplify right side
   49,670.56x = 3,403,857,304.78
5. Step 5: Solve for x
   x = 3,403,857,304.78/49,670.56
6. Step 6: Final answer
   x = 68,528.67