Finding the Fourth Proportional to 6,415.56, 8,853.72 and 3,762.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,415.56 : 8,853.72 = 3,762.72 : x
2. Step 2: Convert to fraction form
   6,415.56/8,853.72 = 3,762.72/x
3. Step 3: Cross multiply
   6,415.56x = 8,853.72 × 3,762.72
4. Step 4: Simplify right side
   6,415.56x = 33,314,069.32
5. Step 5: Solve for x
   x = 33,314,069.32/6,415.56
6. Step 6: Final answer
   x = 5,192.70