Finding the Fourth Proportional to 12,385.53, 17,090.87 and 10,033.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,385.53 : 17,090.87 = 10,033.29 : x
2. Step 2: Convert to fraction form
   12,385.53/17,090.87 = 10,033.29/x
3. Step 3: Cross multiply
   12,385.53x = 17,090.87 × 10,033.29
4. Step 4: Simplify right side
   12,385.53x = 171,477,604.90
5. Step 5: Solve for x
   x = 171,477,604.90/12,385.53
6. Step 6: Final answer
   x = 13,845.00