Finding the Fourth Proportional to 42,080.55, 63,085.49 and 18,370.07

Step by Step Solution

1. Step 1: Write the proportion equation
   42,080.55 : 63,085.49 = 18,370.07 : x
2. Step 2: Convert to fraction form
   42,080.55/63,085.49 = 18,370.07/x
3. Step 3: Cross multiply
   42,080.55x = 63,085.49 × 18,370.07
4. Step 4: Simplify right side
   42,080.55x = 1,158,884,460.01
5. Step 5: Solve for x
   x = 1,158,884,460.01/42,080.55
6. Step 6: Final answer
   x = 27,539.67