Finding the Fourth Proportional to 7,075.31, 10,615.86 and 3,742.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,075.31 : 10,615.86 = 3,742.69 : x
2. Step 2: Convert to fraction form
   7,075.31/10,615.86 = 3,742.69/x
3. Step 3: Cross multiply
   7,075.31x = 10,615.86 × 3,742.69
4. Step 4: Simplify right side
   7,075.31x = 39,731,819.98
5. Step 5: Solve for x
   x = 39,731,819.98/7,075.31
6. Step 6: Final answer
   x = 5,615.56