Finding the Fourth Proportional to 55,495.55, 76,581.60 and 31,620.20

Step by Step Solution

1. Step 1: Write the proportion equation
   55,495.55 : 76,581.60 = 31,620.20 : x
2. Step 2: Convert to fraction form
   55,495.55/76,581.60 = 31,620.20/x
3. Step 3: Cross multiply
   55,495.55x = 76,581.60 × 31,620.20
4. Step 4: Simplify right side
   55,495.55x = 2,421,525,508.32
5. Step 5: Solve for x
   x = 2,421,525,508.32/55,495.55
6. Step 6: Final answer
   x = 43,634.59