Finding the Fourth Proportional to 78,758.10, 108,682.70 and 42,948.27

Step by Step Solution

1. Step 1: Write the proportion equation
   78,758.10 : 108,682.70 = 42,948.27 : x
2. Step 2: Convert to fraction form
   78,758.10/108,682.70 = 42,948.27/x
3. Step 3: Cross multiply
   78,758.10x = 108,682.70 × 42,948.27
4. Step 4: Simplify right side
   78,758.10x = 4,667,733,729.19
5. Step 5: Solve for x
   x = 4,667,733,729.19/78,758.10
6. Step 6: Final answer
   x = 59,266.71