Finding the Fourth Proportional to 49,045.57, 67,685.11 and 28,903.30

Step by Step Solution

1. Step 1: Write the proportion equation
   49,045.57 : 67,685.11 = 28,903.30 : x
2. Step 2: Convert to fraction form
   49,045.57/67,685.11 = 28,903.30/x
3. Step 3: Cross multiply
   49,045.57x = 67,685.11 × 28,903.30
4. Step 4: Simplify right side
   49,045.57x = 1,956,323,039.86
5. Step 5: Solve for x
   x = 1,956,323,039.86/49,045.57
6. Step 6: Final answer
   x = 39,887.86