Finding the Fourth Proportional to 11,803.83, 17,705.18 and 4,407.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,803.83 : 17,705.18 = 4,407.72 : x
2. Step 2: Convert to fraction form
   11,803.83/17,705.18 = 4,407.72/x
3. Step 3: Cross multiply
   11,803.83x = 17,705.18 × 4,407.72
4. Step 4: Simplify right side
   11,803.83x = 78,039,420.61
5. Step 5: Solve for x
   x = 78,039,420.61/11,803.83
6. Step 6: Final answer
   x = 6,611.37