Finding the Fourth Proportional to 90,139.98, 124,389.18 and 49,303.38

Step by Step Solution

1. Step 1: Write the proportion equation
   90,139.98 : 124,389.18 = 49,303.38 : x
2. Step 2: Convert to fraction form
   90,139.98/124,389.18 = 49,303.38/x
3. Step 3: Cross multiply
   90,139.98x = 124,389.18 × 49,303.38
4. Step 4: Simplify right side
   90,139.98x = 6,132,807,009.43
5. Step 5: Solve for x
   x = 6,132,807,009.43/90,139.98
6. Step 6: Final answer
   x = 68,036.48