Finding the Fourth Proportional to 10,339.82, 15,503.85 and 7,056.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,339.82 : 15,503.85 = 7,056.89 : x
2. Step 2: Convert to fraction form
   10,339.82/15,503.85 = 7,056.89/x
3. Step 3: Cross multiply
   10,339.82x = 15,503.85 × 7,056.89
4. Step 4: Simplify right side
   10,339.82x = 109,408,886.51
5. Step 5: Solve for x
   x = 109,408,886.51/10,339.82
6. Step 6: Final answer
   x = 10,581.32