Finding the Fourth Proportional to 307,870.27, 424,868.19 and 171,899.62

Step by Step Solution

1. Step 1: Write the proportion equation
   307,870.27 : 424,868.19 = 171,899.62 : x
2. Step 2: Convert to fraction form
   307,870.27/424,868.19 = 171,899.62/x
3. Step 3: Cross multiply
   307,870.27x = 424,868.19 × 171,899.62
4. Step 4: Simplify right side
   307,870.27x = 73,034,679,551.59
5. Step 5: Solve for x
   x = 73,034,679,551.59/307,870.27
6. Step 6: Final answer
   x = 237,225.50