Finding the Fourth Proportional to 79,706.82, 109,875.20 and 65,535.06

Step by Step Solution

1. Step 1: Write the proportion equation
   79,706.82 : 109,875.20 = 65,535.06 : x
2. Step 2: Convert to fraction form
   79,706.82/109,875.20 = 65,535.06/x
3. Step 3: Cross multiply
   79,706.82x = 109,875.20 × 65,535.06
4. Step 4: Simplify right side
   79,706.82x = 7,200,677,824.51
5. Step 5: Solve for x
   x = 7,200,677,824.51/79,706.82
6. Step 6: Final answer
   x = 90,339.54