Finding the Fourth Proportional to 49,685.72, 74,486.45 and 21,584.59

Step by Step Solution

1. Step 1: Write the proportion equation
   49,685.72 : 74,486.45 = 21,584.59 : x
2. Step 2: Convert to fraction form
   49,685.72/74,486.45 = 21,584.59/x
3. Step 3: Cross multiply
   49,685.72x = 74,486.45 × 21,584.59
4. Step 4: Simplify right side
   49,685.72x = 1,607,759,351.55
5. Step 5: Solve for x
   x = 1,607,759,351.55/49,685.72
6. Step 6: Final answer
   x = 32,358.58