Finding the Fourth Proportional to 50,557,621.61, 69,769,532.79 and 28,535,786.06

Step by Step Solution

1. Step 1: Write the proportion equation
   50,557,621.61 : 69,769,532.79 = 28,535,786.06 : x
2. Step 2: Convert to fraction form
   50,557,621.61/69,769,532.79 = 28,535,786.06/x
3. Step 3: Cross multiply
   50,557,621.61x = 69,769,532.79 × 28,535,786.06
4. Step 4: Simplify right side
   50,557,621.61x = 1,990,928,460,852,747.50
5. Step 5: Solve for x
   x = 1,990,928,460,852,747.50/50,557,621.61
6. Step 6: Final answer
   x = 39,379,393.20