Finding the Fourth Proportional to 42,111, 63,145.35 and 14,021.13

Step by Step Solution

1. Step 1: Write the proportion equation
   42,111 : 63,145.35 = 14,021.13 : x
2. Step 2: Convert to fraction form
   42,111/63,145.35 = 14,021.13/x
3. Step 3: Cross multiply
   42,111x = 63,145.35 × 14,021.13
4. Step 4: Simplify right side
   42,111x = 885,369,161.25
5. Step 5: Solve for x
   x = 885,369,161.25/42,111
6. Step 6: Final answer
   x = 21,024.65