Finding the Fourth Proportional to 90,499.37, 124,446.26 and 78,541.94

Step by Step Solution

1. Step 1: Write the proportion equation
   90,499.37 : 124,446.26 = 78,541.94 : x
2. Step 2: Convert to fraction form
   90,499.37/124,446.26 = 78,541.94/x
3. Step 3: Cross multiply
   90,499.37x = 124,446.26 × 78,541.94
4. Step 4: Simplify right side
   90,499.37x = 9,774,250,604.55
5. Step 5: Solve for x
   x = 9,774,250,604.55/90,499.37
6. Step 6: Final answer
   x = 108,003.53