Finding the Fourth Proportional to 21,097.98, 31,645.86 and 6,307.02

Step by Step Solution

1. Step 1: Write the proportion equation
   21,097.98 : 31,645.86 = 6,307.02 : x
2. Step 2: Convert to fraction form
   21,097.98/31,645.86 = 6,307.02/x
3. Step 3: Cross multiply
   21,097.98x = 31,645.86 × 6,307.02
4. Step 4: Simplify right side
   21,097.98x = 199,591,071.94
5. Step 5: Solve for x
   x = 199,591,071.94/21,097.98
6. Step 6: Final answer
   x = 9,460.20