Finding the Fourth Proportional to 78,803.05, 108,748.06 and 42,993.09

Step by Step Solution

1. Step 1: Write the proportion equation
   78,803.05 : 108,748.06 = 42,993.09 : x
2. Step 2: Convert to fraction form
   78,803.05/108,748.06 = 42,993.09/x
3. Step 3: Cross multiply
   78,803.05x = 108,748.06 × 42,993.09
4. Step 4: Simplify right side
   78,803.05x = 4,675,414,372.20
5. Step 5: Solve for x
   x = 4,675,414,372.20/78,803.05
6. Step 6: Final answer
   x = 59,330.37