Finding the Fourth Proportional to 40,080.63, 60,134.73 and 17,909.31

Step by Step Solution

1. Step 1: Write the proportion equation
   40,080.63 : 60,134.73 = 17,909.31 : x
2. Step 2: Convert to fraction form
   40,080.63/60,134.73 = 17,909.31/x
3. Step 3: Cross multiply
   40,080.63x = 60,134.73 × 17,909.31
4. Step 4: Simplify right side
   40,080.63x = 1,076,971,521.34
5. Step 5: Solve for x
   x = 1,076,971,521.34/40,080.63
6. Step 6: Final answer
   x = 26,870.12