Finding the Fourth Proportional to 78,601.32, 108,468.90 and 51,782.76

Step by Step Solution

1. Step 1: Write the proportion equation
   78,601.32 : 108,468.90 = 51,782.76 : x
2. Step 2: Convert to fraction form
   78,601.32/108,468.90 = 51,782.76/x
3. Step 3: Cross multiply
   78,601.32x = 108,468.90 × 51,782.76
4. Step 4: Simplify right side
   78,601.32x = 5,616,819,016.16
5. Step 5: Solve for x
   x = 5,616,819,016.16/78,601.32
6. Step 6: Final answer
   x = 71,459.60