Finding the Fourth Proportional to 110,571.52, 165,718.72 and 78,931.84

Step by Step Solution

1. Step 1: Write the proportion equation
   110,571.52 : 165,718.72 = 78,931.84 : x
2. Step 2: Convert to fraction form
   110,571.52/165,718.72 = 78,931.84/x
3. Step 3: Cross multiply
   110,571.52x = 165,718.72 × 78,931.84
4. Step 4: Simplify right side
   110,571.52x = 13,080,483,492.04
5. Step 5: Solve for x
   x = 13,080,483,492.04/110,571.52
6. Step 6: Final answer
   x = 118,298.85