Finding the Fourth Proportional to 8,715.42, 12,030.30 and 5,363.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,715.42 : 12,030.30 = 5,363.88 : x
2. Step 2: Convert to fraction form
   8,715.42/12,030.30 = 5,363.88/x
3. Step 3: Cross multiply
   8,715.42x = 12,030.30 × 5,363.88
4. Step 4: Simplify right side
   8,715.42x = 64,529,085.56
5. Step 5: Solve for x
   x = 64,529,085.56/8,715.42
6. Step 6: Final answer
   x = 7,404.01