Finding the Fourth Proportional to 208,539.77, 287,783.69 and 113,046.17

Step by Step Solution

1. Step 1: Write the proportion equation
   208,539.77 : 287,783.69 = 113,046.17 : x
2. Step 2: Convert to fraction form
   208,539.77/287,783.69 = 113,046.17/x
3. Step 3: Cross multiply
   208,539.77x = 287,783.69 × 113,046.17
4. Step 4: Simplify right side
   208,539.77x = 32,532,841,938.82
5. Step 5: Solve for x
   x = 32,532,841,938.82/208,539.77
6. Step 6: Final answer
   x = 156,003.06