Finding the Fourth Proportional to 213,645.53, 294,818.83 and 116,830.17

Step by Step Solution

1. Step 1: Write the proportion equation
   213,645.53 : 294,818.83 = 116,830.17 : x
2. Step 2: Convert to fraction form
   213,645.53/294,818.83 = 116,830.17/x
3. Step 3: Cross multiply
   213,645.53x = 294,818.83 × 116,830.17
4. Step 4: Simplify right side
   213,645.53x = 34,443,733,736.03
5. Step 5: Solve for x
   x = 34,443,733,736.03/213,645.53
6. Step 6: Final answer
   x = 161,219.07