Finding the Fourth Proportional to 10,445.63, 14,415.12 and 5,729.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,445.63 : 14,415.12 = 5,729.81 : x
2. Step 2: Convert to fraction form
   10,445.63/14,415.12 = 5,729.81/x
3. Step 3: Cross multiply
   10,445.63x = 14,415.12 × 5,729.81
4. Step 4: Simplify right side
   10,445.63x = 82,595,934.77
5. Step 5: Solve for x
   x = 82,595,934.77/10,445.63
6. Step 6: Final answer
   x = 7,907.22