Finding the Fourth Proportional to 78,697.27, 108,599.48 and 42,886.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,697.27 : 108,599.48 = 42,886.56 : x
2. Step 2: Convert to fraction form
   78,697.27/108,599.48 = 42,886.56/x
3. Step 3: Cross multiply
   78,697.27x = 108,599.48 × 42,886.56
4. Step 4: Simplify right side
   78,697.27x = 4,657,458,709.87
5. Step 5: Solve for x
   x = 4,657,458,709.87/78,697.27
6. Step 6: Final answer
   x = 59,181.96