Finding the Fourth Proportional to 404,897.55, 607,284.05 and 135,030.42

Step by Step Solution

1. Step 1: Write the proportion equation
   404,897.55 : 607,284.05 = 135,030.42 : x
2. Step 2: Convert to fraction form
   404,897.55/607,284.05 = 135,030.42/x
3. Step 3: Cross multiply
   404,897.55x = 607,284.05 × 135,030.42
4. Step 4: Simplify right side
   404,897.55x = 82,001,817,294.38
5. Step 5: Solve for x
   x = 82,001,817,294.38/404,897.55
6. Step 6: Final answer
   x = 202,524.85