Finding the Fourth Proportional to 99,906.56, 149,762.44 and 39,917.15

Step by Step Solution

1. Step 1: Write the proportion equation
   99,906.56 : 149,762.44 = 39,917.15 : x
2. Step 2: Convert to fraction form
   99,906.56/149,762.44 = 39,917.15/x
3. Step 3: Cross multiply
   99,906.56x = 149,762.44 × 39,917.15
4. Step 4: Simplify right side
   99,906.56x = 5,978,089,682.05
5. Step 5: Solve for x
   x = 5,978,089,682.05/99,906.56
6. Step 6: Final answer
   x = 59,836.81