Finding the Fourth Proportional to 41,112, 61,677.72 and 13,410

Step by Step Solution

1. Step 1: Write the proportion equation
   41,112 : 61,677.72 = 13,410 : x
2. Step 2: Convert to fraction form
   41,112/61,677.72 = 13,410/x
3. Step 3: Cross multiply
   41,112x = 61,677.72 × 13,410
4. Step 4: Simplify right side
   41,112x = 827,098,225.20
5. Step 5: Solve for x
   x = 827,098,225.20/41,112
6. Step 6: Final answer
   x = 20,118.17