Finding the Fourth Proportional to 152,963.78, 211,066.56 and 84,979.67

Step by Step Solution

1. Step 1: Write the proportion equation
   152,963.78 : 211,066.56 = 84,979.67 : x
2. Step 2: Convert to fraction form
   152,963.78/211,066.56 = 84,979.67/x
3. Step 3: Cross multiply
   152,963.78x = 211,066.56 × 84,979.67
4. Step 4: Simplify right side
   152,963.78x = 17,936,365,561.50
5. Step 5: Solve for x
   x = 17,936,365,561.50/152,963.78
6. Step 6: Final answer
   x = 117,258.91