Finding the Fourth Proportional to 151,434.50, 227,007.09 and 56,638.98

Step by Step Solution

1. Step 1: Write the proportion equation
   151,434.50 : 227,007.09 = 56,638.98 : x
2. Step 2: Convert to fraction form
   151,434.50/227,007.09 = 56,638.98/x
3. Step 3: Cross multiply
   151,434.50x = 227,007.09 × 56,638.98
4. Step 4: Simplify right side
   151,434.50x = 12,857,450,030.37
5. Step 5: Solve for x
   x = 12,857,450,030.37/151,434.50
6. Step 6: Final answer
   x = 84,904.37