Finding the Fourth Proportional to 78,587.56, 108,450.72 and 42,777.46

Step by Step Solution

1. Step 1: Write the proportion equation
   78,587.56 : 108,450.72 = 42,777.46 : x
2. Step 2: Convert to fraction form
   78,587.56/108,450.72 = 42,777.46/x
3. Step 3: Cross multiply
   78,587.56x = 108,450.72 × 42,777.46
4. Step 4: Simplify right side
   78,587.56x = 4,639,246,336.77
5. Step 5: Solve for x
   x = 4,639,246,336.77/78,587.56
6. Step 6: Final answer
   x = 59,032.83