Finding the Fourth Proportional to 152,100.63, 227,990.06 and 57,289.79

Step by Step Solution

1. Step 1: Write the proportion equation
   152,100.63 : 227,990.06 = 57,289.79 : x
2. Step 2: Convert to fraction form
   152,100.63/227,990.06 = 57,289.79/x
3. Step 3: Cross multiply
   152,100.63x = 227,990.06 × 57,289.79
4. Step 4: Simplify right side
   152,100.63x = 13,061,503,372.69
5. Step 5: Solve for x
   x = 13,061,503,372.69/152,100.63
6. Step 6: Final answer
   x = 85,874.09