Finding the Fourth Proportional to 111,978.90, 154,525.05 and 69,536.52

Step by Step Solution

1. Step 1: Write the proportion equation
   111,978.90 : 154,525.05 = 69,536.52 : x
2. Step 2: Convert to fraction form
   111,978.90/154,525.05 = 69,536.52/x
3. Step 3: Cross multiply
   111,978.90x = 154,525.05 × 69,536.52
4. Step 4: Simplify right side
   111,978.90x = 10,745,134,229.83
5. Step 5: Solve for x
   x = 10,745,134,229.83/111,978.90
6. Step 6: Final answer
   x = 95,956.78