Finding the Fourth Proportional to 69,810.21, 96,294.89 and 60,879.15

Step by Step Solution

1. Step 1: Write the proportion equation
   69,810.21 : 96,294.89 = 60,879.15 : x
2. Step 2: Convert to fraction form
   69,810.21/96,294.89 = 60,879.15/x
3. Step 3: Cross multiply
   69,810.21x = 96,294.89 × 60,879.15
4. Step 4: Simplify right side
   69,810.21x = 5,862,351,052.54
5. Step 5: Solve for x
   x = 5,862,351,052.54/69,810.21
6. Step 6: Final answer
   x = 83,975.55