Finding the Fourth Proportional to 90,131.48, 124,376.42 and 49,842.84

Step by Step Solution

1. Step 1: Write the proportion equation
   90,131.48 : 124,376.42 = 49,842.84 : x
2. Step 2: Convert to fraction form
   90,131.48/124,376.42 = 49,842.84/x
3. Step 3: Cross multiply
   90,131.48x = 124,376.42 × 49,842.84
4. Step 4: Simplify right side
   90,131.48x = 6,199,274,001.83
5. Step 5: Solve for x
   x = 6,199,274,001.83/90,131.48
6. Step 6: Final answer
   x = 68,780.34