Finding the Fourth Proportional to 266,061.59, 367,172.69 and 145,210.58

Step by Step Solution

1. Step 1: Write the proportion equation
   266,061.59 : 367,172.69 = 145,210.58 : x
2. Step 2: Convert to fraction form
   266,061.59/367,172.69 = 145,210.58/x
3. Step 3: Cross multiply
   266,061.59x = 367,172.69 × 145,210.58
4. Step 4: Simplify right side
   266,061.59x = 53,317,359,275.06
5. Step 5: Solve for x
   x = 53,317,359,275.06/266,061.59
6. Step 6: Final answer
   x = 200,394.80