Finding the Fourth Proportional to 208,624.41, 287,901.69 and 113,131.18

Step by Step Solution

1. Step 1: Write the proportion equation
   208,624.41 : 287,901.69 = 113,131.18 : x
2. Step 2: Convert to fraction form
   208,624.41/287,901.69 = 113,131.18/x
3. Step 3: Cross multiply
   208,624.41x = 287,901.69 × 113,131.18
4. Step 4: Simplify right side
   208,624.41x = 32,570,658,854.35
5. Step 5: Solve for x
   x = 32,570,658,854.35/208,624.41
6. Step 6: Final answer
   x = 156,121.03