Finding the Fourth Proportional to 13,697.40, 20,549.18 and 4,337.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,697.40 : 20,549.18 = 4,337.98 : x
2. Step 2: Convert to fraction form
   13,697.40/20,549.18 = 4,337.98/x
3. Step 3: Cross multiply
   13,697.40x = 20,549.18 × 4,337.98
4. Step 4: Simplify right side
   13,697.40x = 89,141,931.86
5. Step 5: Solve for x
   x = 89,141,931.86/13,697.40
6. Step 6: Final answer
   x = 6,507.95