Finding the Fourth Proportional to 78,582.56, 108,446.04 and 42,774.99

Step by Step Solution

1. Step 1: Write the proportion equation
   78,582.56 : 108,446.04 = 42,774.99 : x
2. Step 2: Convert to fraction form
   78,582.56/108,446.04 = 42,774.99/x
3. Step 3: Cross multiply
   78,582.56x = 108,446.04 × 42,774.99
4. Step 4: Simplify right side
   78,582.56x = 4,638,777,869.87
5. Step 5: Solve for x
   x = 4,638,777,869.87/78,582.56
6. Step 6: Final answer
   x = 59,030.63