Finding the Fourth Proportional to 78,633.67, 108,516.41 and 42,825.63

Step by Step Solution

1. Step 1: Write the proportion equation
   78,633.67 : 108,516.41 = 42,825.63 : x
2. Step 2: Convert to fraction form
   78,633.67/108,516.41 = 42,825.63/x
3. Step 3: Cross multiply
   78,633.67x = 108,516.41 × 42,825.63
4. Step 4: Simplify right side
   78,633.67x = 4,647,283,623.59
5. Step 5: Solve for x
   x = 4,647,283,623.59/78,633.67
6. Step 6: Final answer
   x = 59,100.43