Finding the Fourth Proportional to 72,796.42, 109,194.27 and 28,427.68

Step by Step Solution

1. Step 1: Write the proportion equation
   72,796.42 : 109,194.27 = 28,427.68 : x
2. Step 2: Convert to fraction form
   72,796.42/109,194.27 = 28,427.68/x
3. Step 3: Cross multiply
   72,796.42x = 109,194.27 × 28,427.68
4. Step 4: Simplify right side
   72,796.42x = 3,104,139,765.39
5. Step 5: Solve for x
   x = 3,104,139,765.39/72,796.42
6. Step 6: Final answer
   x = 42,641.38