Finding the Fourth Proportional to 171,448.76, 257,100.84 and 64,814.72

Step by Step Solution

1. Step 1: Write the proportion equation
   171,448.76 : 257,100.84 = 64,814.72 : x
2. Step 2: Convert to fraction form
   171,448.76/257,100.84 = 64,814.72/x
3. Step 3: Cross multiply
   171,448.76x = 257,100.84 × 64,814.72
4. Step 4: Simplify right side
   171,448.76x = 16,663,918,956.36
5. Step 5: Solve for x
   x = 16,663,918,956.36/171,448.76
6. Step 6: Final answer
   x = 97,194.75