Finding the Fourth Proportional to 9,907.53, 14,870.54 and 5,231.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,907.53 : 14,870.54 = 5,231.00 : x
2. Step 2: Convert to fraction form
   9,907.53/14,870.54 = 5,231.00/x
3. Step 3: Cross multiply
   9,907.53x = 14,870.54 × 5,231.00
4. Step 4: Simplify right side
   9,907.53x = 77,787,694.23
5. Step 5: Solve for x
   x = 77,787,694.23/9,907.53
6. Step 6: Final answer
   x = 7,851.37