Finding the Fourth Proportional to 191,832.18, 264,722.61 and 105,791.12

Step by Step Solution

1. Step 1: Write the proportion equation
   191,832.18 : 264,722.61 = 105,791.12 : x
2. Step 2: Convert to fraction form
   191,832.18/264,722.61 = 105,791.12/x
3. Step 3: Cross multiply
   191,832.18x = 264,722.61 × 105,791.12
4. Step 4: Simplify right side
   191,832.18x = 28,005,300,077.61
5. Step 5: Solve for x
   x = 28,005,300,077.61/191,832.18
6. Step 6: Final answer
   x = 145,988.54