Finding the Fourth Proportional to 314,781.34, 434,385.59 and 171,538.30

Step by Step Solution

1. Step 1: Write the proportion equation
   314,781.34 : 434,385.59 = 171,538.30 : x
2. Step 2: Convert to fraction form
   314,781.34/434,385.59 = 171,538.30/x
3. Step 3: Cross multiply
   314,781.34x = 434,385.59 × 171,538.30
4. Step 4: Simplify right side
   314,781.34x = 74,513,765,653.10
5. Step 5: Solve for x
   x = 74,513,765,653.10/314,781.34
6. Step 6: Final answer
   x = 236,715.96