Finding the Fourth Proportional to 78,323.86, 108,087.06 and 42,513.89

Step by Step Solution

1. Step 1: Write the proportion equation
   78,323.86 : 108,087.06 = 42,513.89 : x
2. Step 2: Convert to fraction form
   78,323.86/108,087.06 = 42,513.89/x
3. Step 3: Cross multiply
   78,323.86x = 108,087.06 × 42,513.89
4. Step 4: Simplify right side
   78,323.86x = 4,595,201,063.11
5. Step 5: Solve for x
   x = 4,595,201,063.11/78,323.86
6. Step 6: Final answer
   x = 58,669.24