Finding the Fourth Proportional to 65,819.69, 98,737.79 and 21,434.52

Step by Step Solution

1. Step 1: Write the proportion equation
   65,819.69 : 98,737.79 = 21,434.52 : x
2. Step 2: Convert to fraction form
   65,819.69/98,737.79 = 21,434.52/x
3. Step 3: Cross multiply
   65,819.69x = 98,737.79 × 21,434.52
4. Step 4: Simplify right side
   65,819.69x = 2,116,397,397.60
5. Step 5: Solve for x
   x = 2,116,397,397.60/65,819.69
6. Step 6: Final answer
   x = 32,154.47