Finding the Fourth Proportional to 109,081.24, 163,594.86 and 77,399.08

Step by Step Solution

1. Step 1: Write the proportion equation
   109,081.24 : 163,594.86 = 77,399.08 : x
2. Step 2: Convert to fraction form
   109,081.24/163,594.86 = 77,399.08/x
3. Step 3: Cross multiply
   109,081.24x = 163,594.86 × 77,399.08
4. Step 4: Simplify right side
   109,081.24x = 12,662,091,656.73
5. Step 5: Solve for x
   x = 12,662,091,656.73/109,081.24
6. Step 6: Final answer
   x = 116,079.46