Finding the Fourth Proportional to 540,789,067.55, 811,070,097.44 and 152,521,096.20

Step by Step Solution

1. Step 1: Write the proportion equation
   540,789,067.55 : 811,070,097.44 = 152,521,096.20 : x
2. Step 2: Convert to fraction form
   540,789,067.55/811,070,097.44 = 152,521,096.20/x
3. Step 3: Cross multiply
   540,789,067.55x = 811,070,097.44 × 152,521,096.20
4. Step 4: Simplify right side
   540,789,067.55x = 123,705,300,355,826,992
5. Step 5: Solve for x
   x = 123,705,300,355,826,992/540,789,067.55
6. Step 6: Final answer
   x = 228,749,632.31