Finding the Fourth Proportional to 78,325.83, 108,089.78 and 42,515.83

Step by Step Solution

1. Step 1: Write the proportion equation
   78,325.83 : 108,089.78 = 42,515.83 : x
2. Step 2: Convert to fraction form
   78,325.83/108,089.78 = 42,515.83/x
3. Step 3: Cross multiply
   78,325.83x = 108,089.78 × 42,515.83
4. Step 4: Simplify right side
   78,325.83x = 4,595,526,633.75
5. Step 5: Solve for x
   x = 4,595,526,633.75/78,325.83
6. Step 6: Final answer
   x = 58,671.92