Finding the Fourth Proportional to 78,545.06, 108,394.88 and 42,736.43

Step by Step Solution

1. Step 1: Write the proportion equation
   78,545.06 : 108,394.88 = 42,736.43 : x
2. Step 2: Convert to fraction form
   78,545.06/108,394.88 = 42,736.43/x
3. Step 3: Cross multiply
   78,545.06x = 108,394.88 × 42,736.43
4. Step 4: Simplify right side
   78,545.06x = 4,632,410,201.48
5. Step 5: Solve for x
   x = 4,632,410,201.48/78,545.06
6. Step 6: Final answer
   x = 58,977.74