Finding the Fourth Proportional to 189,034.86, 260,905.83 and 108,516.78

Step by Step Solution

1. Step 1: Write the proportion equation
   189,034.86 : 260,905.83 = 108,516.78 : x
2. Step 2: Convert to fraction form
   189,034.86/260,905.83 = 108,516.78/x
3. Step 3: Cross multiply
   189,034.86x = 260,905.83 × 108,516.78
4. Step 4: Simplify right side
   189,034.86x = 28,312,660,554.83
5. Step 5: Solve for x
   x = 28,312,660,554.83/189,034.86
6. Step 6: Final answer
   x = 149,774.81