Finding the Fourth Proportional to 161,577.72, 242,152.74 and 123,994.17

Step by Step Solution

1. Step 1: Write the proportion equation
   161,577.72 : 242,152.74 = 123,994.17 : x
2. Step 2: Convert to fraction form
   161,577.72/242,152.74 = 123,994.17/x
3. Step 3: Cross multiply
   161,577.72x = 242,152.74 × 123,994.17
4. Step 4: Simplify right side
   161,577.72x = 30,025,528,009.53
5. Step 5: Solve for x
   x = 30,025,528,009.53/161,577.72
6. Step 6: Final answer
   x = 185,827.15