Finding the Fourth Proportional to 43,105.89, 64,658.78 and 13,526.04

Step by Step Solution

1. Step 1: Write the proportion equation
   43,105.89 : 64,658.78 = 13,526.04 : x
2. Step 2: Convert to fraction form
   43,105.89/64,658.78 = 13,526.04/x
3. Step 3: Cross multiply
   43,105.89x = 64,658.78 × 13,526.04
4. Step 4: Simplify right side
   43,105.89x = 874,577,244.63
5. Step 5: Solve for x
   x = 874,577,244.63/43,105.89
6. Step 6: Final answer
   x = 20,289.04