Finding the Fourth Proportional to 90,429.04, 124,791.42 and 50,142.76

Step by Step Solution

1. Step 1: Write the proportion equation
   90,429.04 : 124,791.42 = 50,142.76 : x
2. Step 2: Convert to fraction form
   90,429.04/124,791.42 = 50,142.76/x
3. Step 3: Cross multiply
   90,429.04x = 124,791.42 × 50,142.76
4. Step 4: Simplify right side
   90,429.04x = 6,257,386,223.12
5. Step 5: Solve for x
   x = 6,257,386,223.12/90,429.04
6. Step 6: Final answer
   x = 69,196.65