Finding the Fourth Proportional to 13,061.32, 18,024.66 and 7,756.36

Step by Step Solution

1. Step 1: Write the proportion equation
   13,061.32 : 18,024.66 = 7,756.36 : x
2. Step 2: Convert to fraction form
   13,061.32/18,024.66 = 7,756.36/x
3. Step 3: Cross multiply
   13,061.32x = 18,024.66 × 7,756.36
4. Step 4: Simplify right side
   13,061.32x = 139,805,751.84
5. Step 5: Solve for x
   x = 139,805,751.84/13,061.32
6. Step 6: Final answer
   x = 10,703.80