Finding the Fourth Proportional to 152,556.52, 210,552.42 and 88,931.56

Step by Step Solution

1. Step 1: Write the proportion equation
   152,556.52 : 210,552.42 = 88,931.56 : x
2. Step 2: Convert to fraction form
   152,556.52/210,552.42 = 88,931.56/x
3. Step 3: Cross multiply
   152,556.52x = 210,552.42 × 88,931.56
4. Step 4: Simplify right side
   152,556.52x = 18,724,755,172.38
5. Step 5: Solve for x
   x = 18,724,755,172.38/152,556.52
6. Step 6: Final answer
   x = 122,739.79