Finding the Fourth Proportional to 11,858.72, 16,357.55 and 7,605.29

Step by Step Solution

1. Step 1: Write the proportion equation
   11,858.72 : 16,357.55 = 7,605.29 : x
2. Step 2: Convert to fraction form
   11,858.72/16,357.55 = 7,605.29/x
3. Step 3: Cross multiply
   11,858.72x = 16,357.55 × 7,605.29
4. Step 4: Simplify right side
   11,858.72x = 124,403,914.31
5. Step 5: Solve for x
   x = 124,403,914.31/11,858.72
6. Step 6: Final answer
   x = 10,490.51