Finding the Fourth Proportional to 307,870.52, 424,868.53 and 171,899.87

Step by Step Solution

1. Step 1: Write the proportion equation
   307,870.52 : 424,868.53 = 171,899.87 : x
2. Step 2: Convert to fraction form
   307,870.52/424,868.53 = 171,899.87/x
3. Step 3: Cross multiply
   307,870.52x = 424,868.53 × 171,899.87
4. Step 4: Simplify right side
   307,870.52x = 73,034,845,074.09
5. Step 5: Solve for x
   x = 73,034,845,074.09/307,870.52
6. Step 6: Final answer
   x = 237,225.85