Finding the Fourth Proportional to 78,586.60, 108,452.37 and 42,774.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,586.60 : 108,452.37 = 42,774.88 : x
2. Step 2: Convert to fraction form
   78,586.60/108,452.37 = 42,774.88/x
3. Step 3: Cross multiply
   78,586.60x = 108,452.37 × 42,774.88
4. Step 4: Simplify right side
   78,586.60x = 4,639,037,112.47
5. Step 5: Solve for x
   x = 4,639,037,112.47/78,586.60
6. Step 6: Final answer
   x = 59,030.89