Finding the Fourth Proportional to 78,556.61, 108,410.43 and 42,748.94

Step by Step Solution

1. Step 1: Write the proportion equation
   78,556.61 : 108,410.43 = 42,748.94 : x
2. Step 2: Convert to fraction form
   78,556.61/108,410.43 = 42,748.94/x
3. Step 3: Cross multiply
   78,556.61x = 108,410.43 × 42,748.94
4. Step 4: Simplify right side
   78,556.61x = 4,634,430,425.39
5. Step 5: Solve for x
   x = 4,634,430,425.39/78,556.61
6. Step 6: Final answer
   x = 58,994.79