Finding the Fourth Proportional to 143,886.74, 215,849.82 and 49,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,886.74 : 215,849.82 = 49,091.50 : x
2. Step 2: Convert to fraction form
   143,886.74/215,849.82 = 49,091.50/x
3. Step 3: Cross multiply
   143,886.74x = 215,849.82 × 49,091.50
4. Step 4: Simplify right side
   143,886.74x = 10,596,390,359.28
5. Step 5: Solve for x
   x = 10,596,390,359.28/143,886.74
6. Step 6: Final answer
   x = 73,643.97