Finding the Fourth Proportional to 42,123.84, 63,185.58 and 10,959

Step by Step Solution

1. Step 1: Write the proportion equation
   42,123.84 : 63,185.58 = 10,959 : x
2. Step 2: Convert to fraction form
   42,123.84/63,185.58 = 10,959/x
3. Step 3: Cross multiply
   42,123.84x = 63,185.58 × 10,959
4. Step 4: Simplify right side
   42,123.84x = 692,450,771.22
5. Step 5: Solve for x
   x = 692,450,771.22/42,123.84
6. Step 6: Final answer
   x = 16,438.45