Finding the Fourth Proportional to 152,958.44, 211,086.34 and 84,978.28

Step by Step Solution

1. Step 1: Write the proportion equation
   152,958.44 : 211,086.34 = 84,978.28 : x
2. Step 2: Convert to fraction form
   152,958.44/211,086.34 = 84,978.28/x
3. Step 3: Cross multiply
   152,958.44x = 211,086.34 × 84,978.28
4. Step 4: Simplify right side
   152,958.44x = 17,937,753,086.34
5. Step 5: Solve for x
   x = 17,937,753,086.34/152,958.44
6. Step 6: Final answer
   x = 117,272.07