Finding the Fourth Proportional to 49,664.52, 68,539.50 and 30,807.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,664.52 : 68,539.50 = 30,807.72 : x
2. Step 2: Convert to fraction form
   49,664.52/68,539.50 = 30,807.72/x
3. Step 3: Cross multiply
   49,664.52x = 68,539.50 × 30,807.72
4. Step 4: Simplify right side
   49,664.52x = 2,111,545,724.94
5. Step 5: Solve for x
   x = 2,111,545,724.94/49,664.52
6. Step 6: Final answer
   x = 42,516.18