Finding the Fourth Proportional to 78,499.92, 108,274.98 and 51,633.84

Step by Step Solution

1. Step 1: Write the proportion equation
   78,499.92 : 108,274.98 = 51,633.84 : x
2. Step 2: Convert to fraction form
   78,499.92/108,274.98 = 51,633.84/x
3. Step 3: Cross multiply
   78,499.92x = 108,274.98 × 51,633.84
4. Step 4: Simplify right side
   78,499.92x = 5,590,652,993.32
5. Step 5: Solve for x
   x = 5,590,652,993.32/78,499.92
6. Step 6: Final answer
   x = 71,218.58