Finding the Fourth Proportional to 191,475.72, 264,242.04 and 105,443.58

Step by Step Solution

1. Step 1: Write the proportion equation
   191,475.72 : 264,242.04 = 105,443.58 : x
2. Step 2: Convert to fraction form
   191,475.72/264,242.04 = 105,443.58/x
3. Step 3: Cross multiply
   191,475.72x = 264,242.04 × 105,443.58
4. Step 4: Simplify right side
   191,475.72x = 27,862,626,684.10
5. Step 5: Solve for x
   x = 27,862,626,684.10/191,475.72
6. Step 6: Final answer
   x = 145,515.19