Finding the Fourth Proportional to 90,131.03, 124,381.63 and 49,847.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,131.03 : 124,381.63 = 49,847.50 : x
2. Step 2: Convert to fraction form
   90,131.03/124,381.63 = 49,847.50/x
3. Step 3: Cross multiply
   90,131.03x = 124,381.63 × 49,847.50
4. Step 4: Simplify right side
   90,131.03x = 6,200,113,238.82
5. Step 5: Solve for x
   x = 6,200,113,238.82/90,131.03
6. Step 6: Final answer
   x = 68,790.00