Finding the Fourth Proportional to 99,870.54, 149,806.38 and 33,310.48

Step by Step Solution

1. Step 1: Write the proportion equation
   99,870.54 : 149,806.38 = 33,310.48 : x
2. Step 2: Convert to fraction form
   99,870.54/149,806.38 = 33,310.48/x
3. Step 3: Cross multiply
   99,870.54x = 149,806.38 × 33,310.48
4. Step 4: Simplify right side
   99,870.54x = 4,990,121,675.83
5. Step 5: Solve for x
   x = 4,990,121,675.83/99,870.54
6. Step 6: Final answer
   x = 49,965.90