Finding the Fourth Proportional to 87,804.27, 121,068.89 and 64,867.29

Step by Step Solution

1. Step 1: Write the proportion equation
   87,804.27 : 121,068.89 = 64,867.29 : x
2. Step 2: Convert to fraction form
   87,804.27/121,068.89 = 64,867.29/x
3. Step 3: Cross multiply
   87,804.27x = 121,068.89 × 64,867.29
4. Step 4: Simplify right side
   87,804.27x = 7,853,410,262.52
5. Step 5: Solve for x
   x = 7,853,410,262.52/87,804.27
6. Step 6: Final answer
   x = 89,442.24