Finding the Fourth Proportional to 78,341.10, 108,110.79 and 42,531.09

Step by Step Solution

1. Step 1: Write the proportion equation
   78,341.10 : 108,110.79 = 42,531.09 : x
2. Step 2: Convert to fraction form
   78,341.10/108,110.79 = 42,531.09/x
3. Step 3: Cross multiply
   78,341.10x = 108,110.79 × 42,531.09
4. Step 4: Simplify right side
   78,341.10x = 4,598,069,739.46
5. Step 5: Solve for x
   x = 4,598,069,739.46/78,341.10
6. Step 6: Final answer
   x = 58,692.94