Finding the Fourth Proportional to 231,043.28, 346,081.93 and 185,820.17

Step by Step Solution

1. Step 1: Write the proportion equation
   231,043.28 : 346,081.93 = 185,820.17 : x
2. Step 2: Convert to fraction form
   231,043.28/346,081.93 = 185,820.17/x
3. Step 3: Cross multiply
   231,043.28x = 346,081.93 × 185,820.17
4. Step 4: Simplify right side
   231,043.28x = 64,309,003,066.53
5. Step 5: Solve for x
   x = 64,309,003,066.53/231,043.28
6. Step 6: Final answer
   x = 278,341.80