Finding the Fourth Proportional to 49,678.55, 74,499.59 and 16,388.77

Step by Step Solution

1. Step 1: Write the proportion equation
   49,678.55 : 74,499.59 = 16,388.77 : x
2. Step 2: Convert to fraction form
   49,678.55/74,499.59 = 16,388.77/x
3. Step 3: Cross multiply
   49,678.55x = 74,499.59 × 16,388.77
4. Step 4: Simplify right side
   49,678.55x = 1,220,956,500.33
5. Step 5: Solve for x
   x = 1,220,956,500.33/49,678.55
6. Step 6: Final answer
   x = 24,577.14