Finding the Fourth Proportional to 14,870.64, 22,239.72 and 13,492.56

Step by Step Solution

1. Step 1: Write the proportion equation
   14,870.64 : 22,239.72 = 13,492.56 : x
2. Step 2: Convert to fraction form
   14,870.64/22,239.72 = 13,492.56/x
3. Step 3: Cross multiply
   14,870.64x = 22,239.72 × 13,492.56
4. Step 4: Simplify right side
   14,870.64x = 300,070,756.48
5. Step 5: Solve for x
   x = 300,070,756.48/14,870.64
6. Step 6: Final answer
   x = 20,178.74