Finding the Fourth Proportional to 223,300.19, 308,202.98 and 137,333.10

Step by Step Solution

1. Step 1: Write the proportion equation
   223,300.19 : 308,202.98 = 137,333.10 : x
2. Step 2: Convert to fraction form
   223,300.19/308,202.98 = 137,333.10/x
3. Step 3: Cross multiply
   223,300.19x = 308,202.98 × 137,333.10
4. Step 4: Simplify right side
   223,300.19x = 42,326,471,141.73
5. Step 5: Solve for x
   x = 42,326,471,141.73/223,300.19
6. Step 6: Final answer
   x = 189,549.64