Finding the Fourth Proportional to 10,356.64, 15,526.86 and 7,061.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,356.64 : 15,526.86 = 7,061.56 : x
2. Step 2: Convert to fraction form
   10,356.64/15,526.86 = 7,061.56/x
3. Step 3: Cross multiply
   10,356.64x = 15,526.86 × 7,061.56
4. Step 4: Simplify right side
   10,356.64x = 109,643,853.50
5. Step 5: Solve for x
   x = 109,643,853.50/10,356.64
6. Step 6: Final answer
   x = 10,586.82