Finding the Fourth Proportional to 55,605.98, 83,440.91 and 55,154.61

Step by Step Solution

1. Step 1: Write the proportion equation
   55,605.98 : 83,440.91 = 55,154.61 : x
2. Step 2: Convert to fraction form
   55,605.98/83,440.91 = 55,154.61/x
3. Step 3: Cross multiply
   55,605.98x = 83,440.91 × 55,154.61
4. Step 4: Simplify right side
   55,605.98x = 4,602,150,849.10
5. Step 5: Solve for x
   x = 4,602,150,849.10/55,605.98
6. Step 6: Final answer
   x = 82,763.60