Finding the Fourth Proportional to 90,131.60, 124,383.53 and 49,848.14

Step by Step Solution

1. Step 1: Write the proportion equation
   90,131.60 : 124,383.53 = 49,848.14 : x
2. Step 2: Convert to fraction form
   90,131.60/124,383.53 = 49,848.14/x
3. Step 3: Cross multiply
   90,131.60x = 124,383.53 × 49,848.14
4. Step 4: Simplify right side
   90,131.60x = 6,200,288,052.71
5. Step 5: Solve for x
   x = 6,200,288,052.71/90,131.60
6. Step 6: Final answer
   x = 68,791.50