Finding the Fourth Proportional to 114,496.74, 158,005.89 and 64,192.50

Step by Step Solution

1. Step 1: Write the proportion equation
   114,496.74 : 158,005.89 = 64,192.50 : x
2. Step 2: Convert to fraction form
   114,496.74/158,005.89 = 64,192.50/x
3. Step 3: Cross multiply
   114,496.74x = 158,005.89 × 64,192.50
4. Step 4: Simplify right side
   114,496.74x = 10,142,793,093.83
5. Step 5: Solve for x
   x = 10,142,793,093.83/114,496.74
6. Step 6: Final answer
   x = 88,585.87