Finding the Fourth Proportional to 155,060,399.58, 213,984,786.32 and 85,448,271.52

Step by Step Solution

1. Step 1: Write the proportion equation
   155,060,399.58 : 213,984,786.32 = 85,448,271.52 : x
2. Step 2: Convert to fraction form
   155,060,399.58/213,984,786.32 = 85,448,271.52/x
3. Step 3: Cross multiply
   155,060,399.58x = 213,984,786.32 × 85,448,271.52
4. Step 4: Simplify right side
   155,060,399.58x = 18,284,630,122,620,540
5. Step 5: Solve for x
   x = 18,284,630,122,620,540/155,060,399.58
6. Step 6: Final answer
   x = 117,919,405.42