Finding the Fourth Proportional to 152,749.76, 210,790.72 and 84,766.48

Step by Step Solution

1. Step 1: Write the proportion equation
   152,749.76 : 210,790.72 = 84,766.48 : x
2. Step 2: Convert to fraction form
   152,749.76/210,790.72 = 84,766.48/x
3. Step 3: Cross multiply
   152,749.76x = 210,790.72 × 84,766.48
4. Step 4: Simplify right side
   152,749.76x = 17,867,987,351.07
5. Step 5: Solve for x
   x = 17,867,987,351.07/152,749.76
6. Step 6: Final answer
   x = 116,975.55