Finding the Fourth Proportional to 107,978,768.10, 161,968,152.15 and 47,394,494.10

Step by Step Solution

1. Step 1: Write the proportion equation
   107,978,768.10 : 161,968,152.15 = 47,394,494.10 : x
2. Step 2: Convert to fraction form
   107,978,768.10/161,968,152.15 = 47,394,494.10/x
3. Step 3: Cross multiply
   107,978,768.10x = 161,968,152.15 × 47,394,494.10
4. Step 4: Simplify right side
   107,978,768.10x = 7,676,398,631,461,078
5. Step 5: Solve for x
   x = 7,676,398,631,461,078/107,978,768.10
6. Step 6: Final answer
   x = 71,091,741.15