Finding the Fourth Proportional to 223,003.30, 307,628.31 and 136,981.67

Step by Step Solution

1. Step 1: Write the proportion equation
   223,003.30 : 307,628.31 = 136,981.67 : x
2. Step 2: Convert to fraction form
   223,003.30/307,628.31 = 136,981.67/x
3. Step 3: Cross multiply
   223,003.30x = 307,628.31 × 136,981.67
4. Step 4: Simplify right side
   223,003.30x = 42,139,439,643.08
5. Step 5: Solve for x
   x = 42,139,439,643.08/223,003.30
6. Step 6: Final answer
   x = 188,963.30