Finding the Fourth Proportional to 194,067,908.69, 290,931,801.91 and 72,984,391.25

Step by Step Solution

1. Step 1: Write the proportion equation
   194,067,908.69 : 290,931,801.91 = 72,984,391.25 : x
2. Step 2: Convert to fraction form
   194,067,908.69/290,931,801.91 = 72,984,391.25/x
3. Step 3: Cross multiply
   194,067,908.69x = 290,931,801.91 × 72,984,391.25
4. Step 4: Simplify right side
   194,067,908.69x = 21,233,480,456,029,820
5. Step 5: Solve for x
   x = 21,233,480,456,029,820/194,067,908.69
6. Step 6: Final answer
   x = 109,412,630.87