Finding the Fourth Proportional to 78,758.42, 118,003.98 and 47,528.06

Step by Step Solution

1. Step 1: Write the proportion equation
   78,758.42 : 118,003.98 = 47,528.06 : x
2. Step 2: Convert to fraction form
   78,758.42/118,003.98 = 47,528.06/x
3. Step 3: Cross multiply
   78,758.42x = 118,003.98 × 47,528.06
4. Step 4: Simplify right side
   78,758.42x = 5,608,500,714.92
5. Step 5: Solve for x
   x = 5,608,500,714.92/78,758.42
6. Step 6: Final answer
   x = 71,211.44