Finding the Fourth Proportional to 42,080.31, 63,075.98 and 18,367.07

Step by Step Solution

1. Step 1: Write the proportion equation
   42,080.31 : 63,075.98 = 18,367.07 : x
2. Step 2: Convert to fraction form
   42,080.31/63,075.98 = 18,367.07/x
3. Step 3: Cross multiply
   42,080.31x = 63,075.98 × 18,367.07
4. Step 4: Simplify right side
   42,080.31x = 1,158,520,670.52
5. Step 5: Solve for x
   x = 1,158,520,670.52/42,080.31
6. Step 6: Final answer
   x = 27,531.18