Finding the Fourth Proportional to 111,790.22, 154,300.83 and 65,889.95

Step by Step Solution

1. Step 1: Write the proportion equation
   111,790.22 : 154,300.83 = 65,889.95 : x
2. Step 2: Convert to fraction form
   111,790.22/154,300.83 = 65,889.95/x
3. Step 3: Cross multiply
   111,790.22x = 154,300.83 × 65,889.95
4. Step 4: Simplify right side
   111,790.22x = 10,166,873,973.66
5. Step 5: Solve for x
   x = 10,166,873,973.66/111,790.22
6. Step 6: Final answer
   x = 90,946.01