Finding the Fourth Proportional to 143,337.06, 215,004.78 and 49,842

Step by Step Solution

1. Step 1: Write the proportion equation
   143,337.06 : 215,004.78 = 49,842 : x
2. Step 2: Convert to fraction form
   143,337.06/215,004.78 = 49,842/x
3. Step 3: Cross multiply
   143,337.06x = 215,004.78 × 49,842
4. Step 4: Simplify right side
   143,337.06x = 10,716,268,244.76
5. Step 5: Solve for x
   x = 10,716,268,244.76/143,337.06
6. Step 6: Final answer
   x = 74,762.72