Finding the Fourth Proportional to 190,078.88, 262,374.42 and 109,538.50

Step by Step Solution

1. Step 1: Write the proportion equation
   190,078.88 : 262,374.42 = 109,538.50 : x
2. Step 2: Convert to fraction form
   190,078.88/262,374.42 = 109,538.50/x
3. Step 3: Cross multiply
   190,078.88x = 262,374.42 × 109,538.50
4. Step 4: Simplify right side
   190,078.88x = 28,740,100,405.17
5. Step 5: Solve for x
   x = 28,740,100,405.17/190,078.88
6. Step 6: Final answer
   x = 151,200.91