Finding the Fourth Proportional to 78,323.55, 108,087.05 and 42,513.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,323.55 : 108,087.05 = 42,513.56 : x
2. Step 2: Convert to fraction form
   78,323.55/108,087.05 = 42,513.56/x
3. Step 3: Cross multiply
   78,323.55x = 108,087.05 × 42,513.56
4. Step 4: Simplify right side
   78,323.55x = 4,595,164,532.39
5. Step 5: Solve for x
   x = 4,595,164,532.39/78,323.55
6. Step 6: Final answer
   x = 58,669.00