Finding the Fourth Proportional to 603,633,018.15, 905,448,397.14 and 189,141,570.72

Step by Step Solution

1. Step 1: Write the proportion equation
   603,633,018.15 : 905,448,397.14 = 189,141,570.72 : x
2. Step 2: Convert to fraction form
   603,633,018.15/905,448,397.14 = 189,141,570.72/x
3. Step 3: Cross multiply
   603,633,018.15x = 905,448,397.14 × 189,141,570.72
4. Step 4: Simplify right side
   603,633,018.15x = 171,257,932,040,965,952
5. Step 5: Solve for x
   x = 171,257,932,040,965,952/603,633,018.15
6. Step 6: Final answer
   x = 283,712,001.98