Finding the Fourth Proportional to 69,811.21, 96,296.27 and 60,880.15

Step by Step Solution

1. Step 1: Write the proportion equation
   69,811.21 : 96,296.27 = 60,880.15 : x
2. Step 2: Convert to fraction form
   69,811.21/96,296.27 = 60,880.15/x
3. Step 3: Cross multiply
   69,811.21x = 96,296.27 × 60,880.15
4. Step 4: Simplify right side
   69,811.21x = 5,862,531,362.04
5. Step 5: Solve for x
   x = 5,862,531,362.04/69,811.21
6. Step 6: Final answer
   x = 83,976.93