Finding the Fourth Proportional to 191,898.52, 264,807.97 and 105,858.50

Step by Step Solution

1. Step 1: Write the proportion equation
   191,898.52 : 264,807.97 = 105,858.50 : x
2. Step 2: Convert to fraction form
   191,898.52/264,807.97 = 105,858.50/x
3. Step 3: Cross multiply
   191,898.52x = 264,807.97 × 105,858.50
4. Step 4: Simplify right side
   191,898.52x = 28,032,172,903.56
5. Step 5: Solve for x
   x = 28,032,172,903.56/191,898.52
6. Step 6: Final answer
   x = 146,078.11