Finding the Fourth Proportional to 49,051.37, 67,693.12 and 28,909.10

Step by Step Solution

1. Step 1: Write the proportion equation
   49,051.37 : 67,693.12 = 28,909.10 : x
2. Step 2: Convert to fraction form
   49,051.37/67,693.12 = 28,909.10/x
3. Step 3: Cross multiply
   49,051.37x = 67,693.12 × 28,909.10
4. Step 4: Simplify right side
   49,051.37x = 1,956,947,272.35
5. Step 5: Solve for x
   x = 1,956,947,272.35/49,051.37
6. Step 6: Final answer
   x = 39,895.87