Finding the Fourth Proportional to 71,810.32, 107,620.44 and 55,106.52

Step by Step Solution

1. Step 1: Write the proportion equation
   71,810.32 : 107,620.44 = 55,106.52 : x
2. Step 2: Convert to fraction form
   71,810.32/107,620.44 = 55,106.52/x
3. Step 3: Cross multiply
   71,810.32x = 107,620.44 × 55,106.52
4. Step 4: Simplify right side
   71,810.32x = 5,930,587,929.27
5. Step 5: Solve for x
   x = 5,930,587,929.27/71,810.32
6. Step 6: Final answer
   x = 82,586.85