Finding the Fourth Proportional to 173,417.78, 239,245.71 and 137,463.50

Step by Step Solution

1. Step 1: Write the proportion equation
   173,417.78 : 239,245.71 = 137,463.50 : x
2. Step 2: Convert to fraction form
   173,417.78/239,245.71 = 137,463.50/x
3. Step 3: Cross multiply
   173,417.78x = 239,245.71 × 137,463.50
4. Step 4: Simplify right side
   173,417.78x = 32,887,552,656.59
5. Step 5: Solve for x
   x = 32,887,552,656.59/173,417.78
6. Step 6: Final answer
   x = 189,643.49