Finding the Fourth Proportional to 66,601.89, 99,816.71 and 49,830.33

Step by Step Solution

1. Step 1: Write the proportion equation
   66,601.89 : 99,816.71 = 49,830.33 : x
2. Step 2: Convert to fraction form
   66,601.89/99,816.71 = 49,830.33/x
3. Step 3: Cross multiply
   66,601.89x = 99,816.71 × 49,830.33
4. Step 4: Simplify right side
   66,601.89x = 4,973,899,723.39
5. Step 5: Solve for x
   x = 4,973,899,723.39/66,601.89
6. Step 6: Final answer
   x = 74,681.06