Finding the Fourth Proportional to 191,868.19, 264,771.57 and 105,830.59

Step by Step Solution

1. Step 1: Write the proportion equation
   191,868.19 : 264,771.57 = 105,830.59 : x
2. Step 2: Convert to fraction form
   191,868.19/264,771.57 = 105,830.59/x
3. Step 3: Cross multiply
   191,868.19x = 264,771.57 × 105,830.59
4. Step 4: Simplify right side
   191,868.19x = 28,020,931,468.33
5. Step 5: Solve for x
   x = 28,020,931,468.33/191,868.19
6. Step 6: Final answer
   x = 146,042.61