Finding the Fourth Proportional to 78,255.50, 107,873.16 and 47,984.69

Step by Step Solution

1. Step 1: Write the proportion equation
   78,255.50 : 107,873.16 = 47,984.69 : x
2. Step 2: Convert to fraction form
   78,255.50/107,873.16 = 47,984.69/x
3. Step 3: Cross multiply
   78,255.50x = 107,873.16 × 47,984.69
4. Step 4: Simplify right side
   78,255.50x = 5,176,259,602.55
5. Step 5: Solve for x
   x = 5,176,259,602.55/78,255.50
6. Step 6: Final answer
   x = 66,145.64