Finding the Fourth Proportional to 191,838.86, 264,742.27 and 105,799.09

Step by Step Solution

1. Step 1: Write the proportion equation
   191,838.86 : 264,742.27 = 105,799.09 : x
2. Step 2: Convert to fraction form
   191,838.86/264,742.27 = 105,799.09/x
3. Step 3: Cross multiply
   191,838.86x = 264,742.27 × 105,799.09
4. Step 4: Simplify right side
   191,838.86x = 28,009,490,671.10
5. Step 5: Solve for x
   x = 28,009,490,671.10/191,838.86
6. Step 6: Final answer
   x = 146,005.30