Finding the Fourth Proportional to 171,005.58, 256,284.72 and 91,949.58

Step by Step Solution

1. Step 1: Write the proportion equation
   171,005.58 : 256,284.72 = 91,949.58 : x
2. Step 2: Convert to fraction form
   171,005.58/256,284.72 = 91,949.58/x
3. Step 3: Cross multiply
   171,005.58x = 256,284.72 × 91,949.58
4. Step 4: Simplify right side
   171,005.58x = 23,565,272,364.42
5. Step 5: Solve for x
   x = 23,565,272,364.42/171,005.58
6. Step 6: Final answer
   x = 137,804.11