Finding the Fourth Proportional to 266,426.10, 367,663.72 and 145,564.79

Step by Step Solution

1. Step 1: Write the proportion equation
   266,426.10 : 367,663.72 = 145,564.79 : x
2. Step 2: Convert to fraction form
   266,426.10/367,663.72 = 145,564.79/x
3. Step 3: Cross multiply
   266,426.10x = 367,663.72 × 145,564.79
4. Step 4: Simplify right side
   266,426.10x = 53,518,892,192.42
5. Step 5: Solve for x
   x = 53,518,892,192.42/266,426.10
6. Step 6: Final answer
   x = 200,877.06