Finding the Fourth Proportional to 42,111.40, 63,130.38 and 15,809.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,111.40 : 63,130.38 = 15,809.08 : x
2. Step 2: Convert to fraction form
   42,111.40/63,130.38 = 15,809.08/x
3. Step 3: Cross multiply
   42,111.40x = 63,130.38 × 15,809.08
4. Step 4: Simplify right side
   42,111.40x = 998,033,227.85
5. Step 5: Solve for x
   x = 998,033,227.85/42,111.40
6. Step 6: Final answer
   x = 23,699.83