Finding the Fourth Proportional to 37,481,136.12, 51,723,603.54 and 20,961,072.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,481,136.12 : 51,723,603.54 = 20,961,072.72 : x
2. Step 2: Convert to fraction form
   37,481,136.12/51,723,603.54 = 20,961,072.72/x
3. Step 3: Cross multiply
   37,481,136.12x = 51,723,603.54 × 20,961,072.72
4. Step 4: Simplify right side
   37,481,136.12x = 1,084,182,215,142,389.38
5. Step 5: Solve for x
   x = 1,084,182,215,142,389.38/37,481,136.12
6. Step 6: Final answer
   x = 28,926,076.62