Finding the Fourth Proportional to 49,436.68, 68,218.86 and 28,213.06

Step by Step Solution

1. Step 1: Write the proportion equation
   49,436.68 : 68,218.86 = 28,213.06 : x
2. Step 2: Convert to fraction form
   49,436.68/68,218.86 = 28,213.06/x
3. Step 3: Cross multiply
   49,436.68x = 68,218.86 × 28,213.06
4. Step 4: Simplify right side
   49,436.68x = 1,924,662,790.31
5. Step 5: Solve for x
   x = 1,924,662,790.31/49,436.68
6. Step 6: Final answer
   x = 38,931.88