Finding the Fourth Proportional to 53,181.72, 79,772.84 and 13,736.10

Step by Step Solution

1. Step 1: Write the proportion equation
   53,181.72 : 79,772.84 = 13,736.10 : x
2. Step 2: Convert to fraction form
   53,181.72/79,772.84 = 13,736.10/x
3. Step 3: Cross multiply
   53,181.72x = 79,772.84 × 13,736.10
4. Step 4: Simplify right side
   53,181.72x = 1,095,767,707.52
5. Step 5: Solve for x
   x = 1,095,767,707.52/53,181.72
6. Step 6: Final answer
   x = 20,604.22