Finding the Fourth Proportional to 72,162,300,271.58, 99,584,072,989.38 and 39,165,388,143.03

Step by Step Solution

1. Step 1: Write the proportion equation
   72,162,300,271.58 : 99,584,072,989.38 = 39,165,388,143.03 : x
2. Step 2: Convert to fraction form
   72,162,300,271.58/99,584,072,989.38 = 39,165,388,143.03/x
3. Step 3: Cross multiply
   72,162,300,271.58x = 99,584,072,989.38 × 39,165,388,143.03
4. Step 4: Simplify right side
   72,162,300,271.58x = 3,900,248,871,492,399,923,200
5. Step 5: Solve for x
   x = 3,900,248,871,492,399,923,200/72,162,300,271.58
6. Step 6: Final answer
   x = 54,048,289,159.49