Finding the Fourth Proportional to 49,799.72, 74,708.94 and 21,719.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,799.72 : 74,708.94 = 21,719.72 : x
2. Step 2: Convert to fraction form
   49,799.72/74,708.94 = 21,719.72/x
3. Step 3: Cross multiply
   49,799.72x = 74,708.94 × 21,719.72
4. Step 4: Simplify right side
   49,799.72x = 1,622,657,258.30
5. Step 5: Solve for x
   x = 1,622,657,258.30/49,799.72
6. Step 6: Final answer
   x = 32,583.66