Finding the Fourth Proportional to 21,499.44, 32,248.83 and 15,148.06

Step by Step Solution

1. Step 1: Write the proportion equation
   21,499.44 : 32,248.83 = 15,148.06 : x
2. Step 2: Convert to fraction form
   21,499.44/32,248.83 = 15,148.06/x
3. Step 3: Cross multiply
   21,499.44x = 32,248.83 × 15,148.06
4. Step 4: Simplify right side
   21,499.44x = 488,507,211.77
5. Step 5: Solve for x
   x = 488,507,211.77/21,499.44
6. Step 6: Final answer
   x = 22,721.86