Finding the Fourth Proportional to 139,760.69, 192,867.84 and 76,098.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,760.69 : 192,867.84 = 76,098.50 : x
2. Step 2: Convert to fraction form
   139,760.69/192,867.84 = 76,098.50/x
3. Step 3: Cross multiply
   139,760.69x = 192,867.84 × 76,098.50
4. Step 4: Simplify right side
   139,760.69x = 14,676,953,322.24
5. Step 5: Solve for x
   x = 14,676,953,322.24/139,760.69
6. Step 6: Final answer
   x = 105,014.89