Finding the Fourth Proportional to 37,619,870.82, 51,915,605.61 and 21,100,878.21

Step by Step Solution

1. Step 1: Write the proportion equation
   37,619,870.82 : 51,915,605.61 = 21,100,878.21 : x
2. Step 2: Convert to fraction form
   37,619,870.82/51,915,605.61 = 21,100,878.21/x
3. Step 3: Cross multiply
   37,619,870.82x = 51,915,605.61 × 21,100,878.21
4. Step 4: Simplify right side
   37,619,870.82x = 1,095,464,871,175,002.75
5. Step 5: Solve for x
   x = 1,095,464,871,175,002.75/37,619,870.82
6. Step 6: Final answer
   x = 29,119,315.07