Finding the Fourth Proportional to 103,870.26, 143,269.59 and 63,603.96

Step by Step Solution

1. Step 1: Write the proportion equation
   103,870.26 : 143,269.59 = 63,603.96 : x
2. Step 2: Convert to fraction form
   103,870.26/143,269.59 = 63,603.96/x
3. Step 3: Cross multiply
   103,870.26x = 143,269.59 × 63,603.96
4. Step 4: Simplify right side
   103,870.26x = 9,112,513,271.58
5. Step 5: Solve for x
   x = 9,112,513,271.58/103,870.26
6. Step 6: Final answer
   x = 87,729.76