Finding the Fourth Proportional to 11,357.01, 16,942.37 and 10,561.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,357.01 : 16,942.37 = 10,561.59 : x
2. Step 2: Convert to fraction form
   11,357.01/16,942.37 = 10,561.59/x
3. Step 3: Cross multiply
   11,357.01x = 16,942.37 × 10,561.59
4. Step 4: Simplify right side
   11,357.01x = 178,938,312.76
5. Step 5: Solve for x
   x = 178,938,312.76/11,357.01
6. Step 6: Final answer
   x = 15,755.76