Finding the Fourth Proportional to 86,802.55, 130,133.75 and 79,796.25

Step by Step Solution

1. Step 1: Write the proportion equation
   86,802.55 : 130,133.75 = 79,796.25 : x
2. Step 2: Convert to fraction form
   86,802.55/130,133.75 = 79,796.25/x
3. Step 3: Cross multiply
   86,802.55x = 130,133.75 × 79,796.25
4. Step 4: Simplify right side
   86,802.55x = 10,384,184,849.46
5. Step 5: Solve for x
   x = 10,384,184,849.46/86,802.55
6. Step 6: Final answer
   x = 119,629.95