Finding the Fourth Proportional to 191,892.69, 264,812.91 and 105,854.67

Step by Step Solution

1. Step 1: Write the proportion equation
   191,892.69 : 264,812.91 = 105,854.67 : x
2. Step 2: Convert to fraction form
   191,892.69/264,812.91 = 105,854.67/x
3. Step 3: Cross multiply
   191,892.69x = 264,812.91 × 105,854.67
4. Step 4: Simplify right side
   191,892.69x = 28,031,683,199.79
5. Step 5: Solve for x
   x = 28,031,683,199.79/191,892.69
6. Step 6: Final answer
   x = 146,080.00