Finding the Fourth Proportional to 42,741.84, 64,118.82 and 13,162.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,741.84 : 64,118.82 = 13,162.08 : x
2. Step 2: Convert to fraction form
   42,741.84/64,118.82 = 13,162.08/x
3. Step 3: Cross multiply
   42,741.84x = 64,118.82 × 13,162.08
4. Step 4: Simplify right side
   42,741.84x = 843,937,038.35
5. Step 5: Solve for x
   x = 843,937,038.35/42,741.84
6. Step 6: Final answer
   x = 19,744.99