Finding the Fourth Proportional to 65,109.69, 97,671.83 and 20,726.15

Step by Step Solution

1. Step 1: Write the proportion equation
   65,109.69 : 97,671.83 = 20,726.15 : x
2. Step 2: Convert to fraction form
   65,109.69/97,671.83 = 20,726.15/x
3. Step 3: Cross multiply
   65,109.69x = 97,671.83 × 20,726.15
4. Step 4: Simplify right side
   65,109.69x = 2,024,360,407.36
5. Step 5: Solve for x
   x = 2,024,360,407.36/65,109.69
6. Step 6: Final answer
   x = 31,091.54