Finding the Fourth Proportional to 143,317.04, 215,061.96 and 49,888.40

Step by Step Solution

1. Step 1: Write the proportion equation
   143,317.04 : 215,061.96 = 49,888.40 : x
2. Step 2: Convert to fraction form
   143,317.04/215,061.96 = 49,888.40/x
3. Step 3: Cross multiply
   143,317.04x = 215,061.96 × 49,888.40
4. Step 4: Simplify right side
   143,317.04x = 10,729,097,085.26
5. Step 5: Solve for x
   x = 10,729,097,085.26/143,317.04
6. Step 6: Final answer
   x = 74,862.68