Finding the Fourth Proportional to 14,130.56, 21,173.76 and 5,360.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,130.56 : 21,173.76 = 5,360.72 : x
2. Step 2: Convert to fraction form
   14,130.56/21,173.76 = 5,360.72/x
3. Step 3: Cross multiply
   14,130.56x = 21,173.76 × 5,360.72
4. Step 4: Simplify right side
   14,130.56x = 113,506,598.71
5. Step 5: Solve for x
   x = 113,506,598.71/14,130.56
6. Step 6: Final answer
   x = 8,032.70