Finding the Fourth Proportional to 53,676.29, 74,075.83 and 31,018.29

Step by Step Solution

1. Step 1: Write the proportion equation
   53,676.29 : 74,075.83 = 31,018.29 : x
2. Step 2: Convert to fraction form
   53,676.29/74,075.83 = 31,018.29/x
3. Step 3: Cross multiply
   53,676.29x = 74,075.83 × 31,018.29
4. Step 4: Simplify right side
   53,676.29x = 2,297,705,576.93
5. Step 5: Solve for x
   x = 2,297,705,576.93/53,676.29
6. Step 6: Final answer
   x = 42,806.71