Finding the Fourth Proportional to 78,647.10, 108,532.08 and 42,837

Step by Step Solution

1. Step 1: Write the proportion equation
   78,647.10 : 108,532.08 = 42,837 : x
2. Step 2: Convert to fraction form
   78,647.10/108,532.08 = 42,837/x
3. Step 3: Cross multiply
   78,647.10x = 108,532.08 × 42,837
4. Step 4: Simplify right side
   78,647.10x = 4,649,188,710.96
5. Step 5: Solve for x
   x = 4,649,188,710.96/78,647.10
6. Step 6: Final answer
   x = 59,114.56