Finding the Fourth Proportional to 109,986.02, 164,978.76 and 26,880.02

Step by Step Solution

1. Step 1: Write the proportion equation
   109,986.02 : 164,978.76 = 26,880.02 : x
2. Step 2: Convert to fraction form
   109,986.02/164,978.76 = 26,880.02/x
3. Step 3: Cross multiply
   109,986.02x = 164,978.76 × 26,880.02
4. Step 4: Simplify right side
   109,986.02x = 4,434,632,368.38
5. Step 5: Solve for x
   x = 4,434,632,368.38/109,986.02
6. Step 6: Final answer
   x = 40,319.96