Finding the Fourth Proportional to 78,543.06, 108,392.12 and 42,734.43

Step by Step Solution

1. Step 1: Write the proportion equation
   78,543.06 : 108,392.12 = 42,734.43 : x
2. Step 2: Convert to fraction form
   78,543.06/108,392.12 = 42,734.43/x
3. Step 3: Cross multiply
   78,543.06x = 108,392.12 × 42,734.43
4. Step 4: Simplify right side
   78,543.06x = 4,632,075,058.22
5. Step 5: Solve for x
   x = 4,632,075,058.22/78,543.06
6. Step 6: Final answer
   x = 58,974.98