Finding the Fourth Proportional to 49,510.56, 74,248.56 and 19,920.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,510.56 : 74,248.56 = 19,920.72 : x
2. Step 2: Convert to fraction form
   49,510.56/74,248.56 = 19,920.72/x
3. Step 3: Cross multiply
   49,510.56x = 74,248.56 × 19,920.72
4. Step 4: Simplify right side
   49,510.56x = 1,479,084,774.16
5. Step 5: Solve for x
   x = 1,479,084,774.16/49,510.56
6. Step 6: Final answer
   x = 29,874.13