Finding the Fourth Proportional to 10,374.10, 15,536.85 and 7,069.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,374.10 : 15,536.85 = 7,069.30 : x
2. Step 2: Convert to fraction form
   10,374.10/15,536.85 = 7,069.30/x
3. Step 3: Cross multiply
   10,374.10x = 15,536.85 × 7,069.30
4. Step 4: Simplify right side
   10,374.10x = 109,834,653.71
5. Step 5: Solve for x
   x = 109,834,653.71/10,374.10
6. Step 6: Final answer
   x = 10,587.39