Finding the Fourth Proportional to 19,086,670.98, 28,642,603.59 and 10,117,521.54

Step by Step Solution

1. Step 1: Write the proportion equation
   19,086,670.98 : 28,642,603.59 = 10,117,521.54 : x
2. Step 2: Convert to fraction form
   19,086,670.98/28,642,603.59 = 10,117,521.54/x
3. Step 3: Cross multiply
   19,086,670.98x = 28,642,603.59 × 10,117,521.54
4. Step 4: Simplify right side
   19,086,670.98x = 289,792,158,783,506.31
5. Step 5: Solve for x
   x = 289,792,158,783,506.31/19,086,670.98
6. Step 6: Final answer
   x = 15,182,959.83