Finding the Fourth Proportional to 80,681.37, 120,855.60 and 47,300.07

Step by Step Solution

1. Step 1: Write the proportion equation
   80,681.37 : 120,855.60 = 47,300.07 : x
2. Step 2: Convert to fraction form
   80,681.37/120,855.60 = 47,300.07/x
3. Step 3: Cross multiply
   80,681.37x = 120,855.60 × 47,300.07
4. Step 4: Simplify right side
   80,681.37x = 5,716,478,339.89
5. Step 5: Solve for x
   x = 5,716,478,339.89/80,681.37
6. Step 6: Final answer
   x = 70,852.52