Finding the Fourth Proportional to 615,017.24, 922,493.05 and 165,730.89

Step by Step Solution

1. Step 1: Write the proportion equation
   615,017.24 : 922,493.05 = 165,730.89 : x
2. Step 2: Convert to fraction form
   615,017.24/922,493.05 = 165,730.89/x
3. Step 3: Cross multiply
   615,017.24x = 922,493.05 × 165,730.89
4. Step 4: Simplify right side
   615,017.24x = 152,885,598,172.57
5. Step 5: Solve for x
   x = 152,885,598,172.57/615,017.24
6. Step 6: Final answer
   x = 248,587.50