Finding the Fourth Proportional to 189,061.74, 260,729.89 and 137,993.62

Step by Step Solution

1. Step 1: Write the proportion equation
   189,061.74 : 260,729.89 = 137,993.62 : x
2. Step 2: Convert to fraction form
   189,061.74/260,729.89 = 137,993.62/x
3. Step 3: Cross multiply
   189,061.74x = 260,729.89 × 137,993.62
4. Step 4: Simplify right side
   189,061.74x = 35,979,061,363.30
5. Step 5: Solve for x
   x = 35,979,061,363.30/189,061.74
6. Step 6: Final answer
   x = 190,303.24