Finding the Fourth Proportional to 392,659.83, 589,019.58 and 152,670.63

Step by Step Solution

1. Step 1: Write the proportion equation
   392,659.83 : 589,019.58 = 152,670.63 : x
2. Step 2: Convert to fraction form
   392,659.83/589,019.58 = 152,670.63/x
3. Step 3: Cross multiply
   392,659.83x = 589,019.58 × 152,670.63
4. Step 4: Simplify right side
   392,659.83x = 89,925,988,451.06
5. Step 5: Solve for x
   x = 89,925,988,451.06/392,659.83
6. Step 6: Final answer
   x = 229,017.54