Finding the Fourth Proportional to 78,393.88, 108,181.74 and 42,583.09

Step by Step Solution

1. Step 1: Write the proportion equation
   78,393.88 : 108,181.74 = 42,583.09 : x
2. Step 2: Convert to fraction form
   78,393.88/108,181.74 = 42,583.09/x
3. Step 3: Cross multiply
   78,393.88x = 108,181.74 × 42,583.09
4. Step 4: Simplify right side
   78,393.88x = 4,606,712,770.78
5. Step 5: Solve for x
   x = 4,606,712,770.78/78,393.88
6. Step 6: Final answer
   x = 58,763.68