Finding the Fourth Proportional to 14,056.06, 21,084.96 and 5,173.78

Step by Step Solution

1. Step 1: Write the proportion equation
   14,056.06 : 21,084.96 = 5,173.78 : x
2. Step 2: Convert to fraction form
   14,056.06/21,084.96 = 5,173.78/x
3. Step 3: Cross multiply
   14,056.06x = 21,084.96 × 5,173.78
4. Step 4: Simplify right side
   14,056.06x = 109,088,944.35
5. Step 5: Solve for x
   x = 109,088,944.35/14,056.06
6. Step 6: Final answer
   x = 7,760.99