Finding the Fourth Proportional to 13,045.02, 19,565.81 and 3,685.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,045.02 : 19,565.81 = 3,685.89 : x
2. Step 2: Convert to fraction form
   13,045.02/19,565.81 = 3,685.89/x
3. Step 3: Cross multiply
   13,045.02x = 19,565.81 × 3,685.89
4. Step 4: Simplify right side
   13,045.02x = 72,117,423.42
5. Step 5: Solve for x
   x = 72,117,423.42/13,045.02
6. Step 6: Final answer
   x = 5,528.35