Finding the Fourth Proportional to 143,892.99, 215,859.20 and 49,097.75

Step by Step Solution

1. Step 1: Write the proportion equation
   143,892.99 : 215,859.20 = 49,097.75 : x
2. Step 2: Convert to fraction form
   143,892.99/215,859.20 = 49,097.75/x
3. Step 3: Cross multiply
   143,892.99x = 215,859.20 × 49,097.75
4. Step 4: Simplify right side
   143,892.99x = 10,598,199,712.02
5. Step 5: Solve for x
   x = 10,598,199,712.02/143,892.99
6. Step 6: Final answer
   x = 73,653.34