Finding the Fourth Proportional to 81,978,939.56, 122,989,968.16 and 29,461,912.38

Step by Step Solution

1. Step 1: Write the proportion equation
   81,978,939.56 : 122,989,968.16 = 29,461,912.38 : x
2. Step 2: Convert to fraction form
   81,978,939.56/122,989,968.16 = 29,461,912.38/x
3. Step 3: Cross multiply
   81,978,939.56x = 122,989,968.16 × 29,461,912.38
4. Step 4: Simplify right side
   81,978,939.56x = 3,623,519,665,548,909.50
5. Step 5: Solve for x
   x = 3,623,519,665,548,909.50/81,978,939.56
6. Step 6: Final answer
   x = 44,200,616.46