Finding the Fourth Proportional to 11,161.07, 15,402.98 and 7,377.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,161.07 : 15,402.98 = 7,377.59 : x
2. Step 2: Convert to fraction form
   11,161.07/15,402.98 = 7,377.59/x
3. Step 3: Cross multiply
   11,161.07x = 15,402.98 × 7,377.59
4. Step 4: Simplify right side
   11,161.07x = 113,636,928.17
5. Step 5: Solve for x
   x = 113,636,928.17/11,161.07
6. Step 6: Final answer
   x = 10,181.55