Finding the Fourth Proportional to 35,379.68, 53,069.56 and 13,192.72

Step by Step Solution

1. Step 1: Write the proportion equation
   35,379.68 : 53,069.56 = 13,192.72 : x
2. Step 2: Convert to fraction form
   35,379.68/53,069.56 = 13,192.72/x
3. Step 3: Cross multiply
   35,379.68x = 53,069.56 × 13,192.72
4. Step 4: Simplify right side
   35,379.68x = 700,131,845.60
5. Step 5: Solve for x
   x = 700,131,845.60/35,379.68
6. Step 6: Final answer
   x = 19,789.09