Finding the Fourth Proportional to 171,803.50, 257,742.29 and 51,850.43

Step by Step Solution

1. Step 1: Write the proportion equation
   171,803.50 : 257,742.29 = 51,850.43 : x
2. Step 2: Convert to fraction form
   171,803.50/257,742.29 = 51,850.43/x
3. Step 3: Cross multiply
   171,803.50x = 257,742.29 × 51,850.43
4. Step 4: Simplify right side
   171,803.50x = 13,364,047,017.72
5. Step 5: Solve for x
   x = 13,364,047,017.72/171,803.50
6. Step 6: Final answer
   x = 77,786.82