Finding the Fourth Proportional to 287,227.59, 430,840.71 and 76,865.52

Step by Step Solution

1. Step 1: Write the proportion equation
   287,227.59 : 430,840.71 = 76,865.52 : x
2. Step 2: Convert to fraction form
   287,227.59/430,840.71 = 76,865.52/x
3. Step 3: Cross multiply
   287,227.59x = 430,840.71 × 76,865.52
4. Step 4: Simplify right side
   287,227.59x = 33,116,795,211.32
5. Step 5: Solve for x
   x = 33,116,795,211.32/287,227.59
6. Step 6: Final answer
   x = 115,298.10