Finding the Fourth Proportional to 78,354.72, 108,152.28 and 47,738.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,354.72 : 108,152.28 = 47,738.88 : x
2. Step 2: Convert to fraction form
   78,354.72/108,152.28 = 47,738.88/x
3. Step 3: Cross multiply
   78,354.72x = 108,152.28 × 47,738.88
4. Step 4: Simplify right side
   78,354.72x = 5,163,068,716.65
5. Step 5: Solve for x
   x = 5,163,068,716.65/78,354.72
6. Step 6: Final answer
   x = 65,893.53