Finding the Fourth Proportional to 30,911,566.08, 42,658,110.72 and 19,315,864.32

Step by Step Solution

1. Step 1: Write the proportion equation
   30,911,566.08 : 42,658,110.72 = 19,315,864.32 : x
2. Step 2: Convert to fraction form
   30,911,566.08/42,658,110.72 = 19,315,864.32/x
3. Step 3: Cross multiply
   30,911,566.08x = 42,658,110.72 × 19,315,864.32
4. Step 4: Simplify right side
   30,911,566.08x = 823,978,278,815,057.50
5. Step 5: Solve for x
   x = 823,978,278,815,057.50/30,911,566.08
6. Step 6: Final answer
   x = 26,655,986.20