Finding the Fourth Proportional to 171,558.32, 257,100.80 and 123,792.81

Step by Step Solution

1. Step 1: Write the proportion equation
   171,558.32 : 257,100.80 = 123,792.81 : x
2. Step 2: Convert to fraction form
   171,558.32/257,100.80 = 123,792.81/x
3. Step 3: Cross multiply
   171,558.32x = 257,100.80 × 123,792.81
4. Step 4: Simplify right side
   171,558.32x = 31,827,229,866.28
5. Step 5: Solve for x
   x = 31,827,229,866.28/171,558.32
6. Step 6: Final answer
   x = 185,518.43