Finding the Fourth Proportional to 171,290.71, 256,953.35 and 58,956.15

Step by Step Solution

1. Step 1: Write the proportion equation
   171,290.71 : 256,953.35 = 58,956.15 : x
2. Step 2: Convert to fraction form
   171,290.71/256,953.35 = 58,956.15/x
3. Step 3: Cross multiply
   171,290.71x = 256,953.35 × 58,956.15
4. Step 4: Simplify right side
   171,290.71x = 15,148,980,245.60
5. Step 5: Solve for x
   x = 15,148,980,245.60/171,290.71
6. Step 6: Final answer
   x = 88,440.17