Finding the Fourth Proportional to 120,938.80, 166,827.42 and 72,527.82

Step by Step Solution

1. Step 1: Write the proportion equation
   120,938.80 : 166,827.42 = 72,527.82 : x
2. Step 2: Convert to fraction form
   120,938.80/166,827.42 = 72,527.82/x
3. Step 3: Cross multiply
   120,938.80x = 166,827.42 × 72,527.82
4. Step 4: Simplify right side
   120,938.80x = 12,099,629,088.82
5. Step 5: Solve for x
   x = 12,099,629,088.82/120,938.80
6. Step 6: Final answer
   x = 100,047.54