Finding the Fourth Proportional to 21,159.98, 31,754.58 and 7,308.98

Step by Step Solution

1. Step 1: Write the proportion equation
   21,159.98 : 31,754.58 = 7,308.98 : x
2. Step 2: Convert to fraction form
   21,159.98/31,754.58 = 7,308.98/x
3. Step 3: Cross multiply
   21,159.98x = 31,754.58 × 7,308.98
4. Step 4: Simplify right side
   21,159.98x = 232,093,742.76
5. Step 5: Solve for x
   x = 232,093,742.76/21,159.98
6. Step 6: Final answer
   x = 10,968.52