Finding the Fourth Proportional to 307,145.04, 423,804.06 and 171,175.56

Step by Step Solution

1. Step 1: Write the proportion equation
   307,145.04 : 423,804.06 = 171,175.56 : x
2. Step 2: Convert to fraction form
   307,145.04/423,804.06 = 171,175.56/x
3. Step 3: Cross multiply
   307,145.04x = 423,804.06 × 171,175.56
4. Step 4: Simplify right side
   307,145.04x = 72,544,897,300.77
5. Step 5: Solve for x
   x = 72,544,897,300.77/307,145.04
6. Step 6: Final answer
   x = 236,191.01