Finding the Fourth Proportional to 99,906.87, 149,762.91 and 39,917.46

Step by Step Solution

1. Step 1: Write the proportion equation
   99,906.87 : 149,762.91 = 39,917.46 : x
2. Step 2: Convert to fraction form
   99,906.87/149,762.91 = 39,917.46/x
3. Step 3: Cross multiply
   99,906.87x = 149,762.91 × 39,917.46
4. Step 4: Simplify right side
   99,906.87x = 5,978,155,144.23
5. Step 5: Solve for x
   x = 5,978,155,144.23/99,906.87
6. Step 6: Final answer
   x = 59,837.28