Finding the Fourth Proportional to 53,574.89, 80,361.50 and 13,048.77

Step by Step Solution

1. Step 1: Write the proportion equation
   53,574.89 : 80,361.50 = 13,048.77 : x
2. Step 2: Convert to fraction form
   53,574.89/80,361.50 = 13,048.77/x
3. Step 3: Cross multiply
   53,574.89x = 80,361.50 × 13,048.77
4. Step 4: Simplify right side
   53,574.89x = 1,048,618,665.11
5. Step 5: Solve for x
   x = 1,048,618,665.11/53,574.89
6. Step 6: Final answer
   x = 19,572.95