Finding the Fourth Proportional to 49,870.79, 68,812.30 and 29,729.57

Step by Step Solution

1. Step 1: Write the proportion equation
   49,870.79 : 68,812.30 = 29,729.57 : x
2. Step 2: Convert to fraction form
   49,870.79/68,812.30 = 29,729.57/x
3. Step 3: Cross multiply
   49,870.79x = 68,812.30 × 29,729.57
4. Step 4: Simplify right side
   49,870.79x = 2,045,759,782.81
5. Step 5: Solve for x
   x = 2,045,759,782.81/49,870.79
6. Step 6: Final answer
   x = 41,021.20