Finding the Fourth Proportional to 82,100.72, 122,955.59 and 52,426.64

Step by Step Solution

1. Step 1: Write the proportion equation
   82,100.72 : 122,955.59 = 52,426.64 : x
2. Step 2: Convert to fraction form
   82,100.72/122,955.59 = 52,426.64/x
3. Step 3: Cross multiply
   82,100.72x = 122,955.59 × 52,426.64
4. Step 4: Simplify right side
   82,100.72x = 6,446,147,576.01
5. Step 5: Solve for x
   x = 6,446,147,576.01/82,100.72
6. Step 6: Final answer
   x = 78,515.12