Finding the Fourth Proportional to 11,468.58, 15,830 and 7,490.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,468.58 : 15,830 = 7,490.31 : x
2. Step 2: Convert to fraction form
   11,468.58/15,830 = 7,490.31/x
3. Step 3: Cross multiply
   11,468.58x = 15,830 × 7,490.31
4. Step 4: Simplify right side
   11,468.58x = 118,571,607.30
5. Step 5: Solve for x
   x = 118,571,607.30/11,468.58
6. Step 6: Final answer
   x = 10,338.82