Finding the Fourth Proportional to 49,039.58, 67,679.60 and 28,902.94

Step by Step Solution

1. Step 1: Write the proportion equation
   49,039.58 : 67,679.60 = 28,902.94 : x
2. Step 2: Convert to fraction form
   49,039.58/67,679.60 = 28,902.94/x
3. Step 3: Cross multiply
   49,039.58x = 67,679.60 × 28,902.94
4. Step 4: Simplify right side
   49,039.58x = 1,956,139,418.02
5. Step 5: Solve for x
   x = 1,956,139,418.02/49,039.58
6. Step 6: Final answer
   x = 39,888.99