Finding the Fourth Proportional to 31,128.56, 46,692.74 and 7,755.02

Step by Step Solution

1. Step 1: Write the proportion equation
   31,128.56 : 46,692.74 = 7,755.02 : x
2. Step 2: Convert to fraction form
   31,128.56/46,692.74 = 7,755.02/x
3. Step 3: Cross multiply
   31,128.56x = 46,692.74 × 7,755.02
4. Step 4: Simplify right side
   31,128.56x = 362,103,132.55
5. Step 5: Solve for x
   x = 362,103,132.55/31,128.56
6. Step 6: Final answer
   x = 11,632.51