Finding the Fourth Proportional to 10,900.63, 16,353.65 and 3,505.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,900.63 : 16,353.65 = 3,505.92 : x
2. Step 2: Convert to fraction form
   10,900.63/16,353.65 = 3,505.92/x
3. Step 3: Cross multiply
   10,900.63x = 16,353.65 × 3,505.92
4. Step 4: Simplify right side
   10,900.63x = 57,334,588.61
5. Step 5: Solve for x
   x = 57,334,588.61/10,900.63
6. Step 6: Final answer
   x = 5,259.75