Finding the Fourth Proportional to 49,179.44, 73,773.36 and 21,100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,179.44 : 73,773.36 = 21,100.72 : x
2. Step 2: Convert to fraction form
   49,179.44/73,773.36 = 21,100.72/x
3. Step 3: Cross multiply
   49,179.44x = 73,773.36 × 21,100.72
4. Step 4: Simplify right side
   49,179.44x = 1,556,671,012.82
5. Step 5: Solve for x
   x = 1,556,671,012.82/49,179.44
6. Step 6: Final answer
   x = 31,652.88