Finding the Fourth Proportional to 208,842.02, 288,199.59 and 113,348.78

Step by Step Solution

1. Step 1: Write the proportion equation
   208,842.02 : 288,199.59 = 113,348.78 : x
2. Step 2: Convert to fraction form
   208,842.02/288,199.59 = 113,348.78/x
3. Step 3: Cross multiply
   208,842.02x = 288,199.59 × 113,348.78
4. Step 4: Simplify right side
   208,842.02x = 32,667,071,923.00
5. Step 5: Solve for x
   x = 32,667,071,923.00/208,842.02
6. Step 6: Final answer
   x = 156,420.02