Finding the Fourth Proportional to 10,445.71, 14,415.30 and 5,729.99

Step by Step Solution

1. Step 1: Write the proportion equation
   10,445.71 : 14,415.30 = 5,729.99 : x
2. Step 2: Convert to fraction form
   10,445.71/14,415.30 = 5,729.99/x
3. Step 3: Cross multiply
   10,445.71x = 14,415.30 × 5,729.99
4. Step 4: Simplify right side
   10,445.71x = 82,599,452.77
5. Step 5: Solve for x
   x = 82,599,452.77/10,445.71
6. Step 6: Final answer
   x = 7,907.50