Finding the Fourth Proportional to 48,521.69, 72,781.72 and 21,852.84

Step by Step Solution

1. Step 1: Write the proportion equation
   48,521.69 : 72,781.72 = 21,852.84 : x
2. Step 2: Convert to fraction form
   48,521.69/72,781.72 = 21,852.84/x
3. Step 3: Cross multiply
   48,521.69x = 72,781.72 × 21,852.84
4. Step 4: Simplify right side
   48,521.69x = 1,590,487,227.45
5. Step 5: Solve for x
   x = 1,590,487,227.45/48,521.69
6. Step 6: Final answer
   x = 32,778.90