Finding the Fourth Proportional to 78,556.96, 108,408.50 and 42,746.92

Step by Step Solution

1. Step 1: Write the proportion equation
   78,556.96 : 108,408.50 = 42,746.92 : x
2. Step 2: Convert to fraction form
   78,556.96/108,408.50 = 42,746.92/x
3. Step 3: Cross multiply
   78,556.96x = 108,408.50 × 42,746.92
4. Step 4: Simplify right side
   78,556.96x = 4,634,129,476.82
5. Step 5: Solve for x
   x = 4,634,129,476.82/78,556.96
6. Step 6: Final answer
   x = 58,990.69