Finding the Fourth Proportional to 152,971.93, 211,016.27 and 142,147.21

Step by Step Solution

1. Step 1: Write the proportion equation
   152,971.93 : 211,016.27 = 142,147.21 : x
2. Step 2: Convert to fraction form
   152,971.93/211,016.27 = 142,147.21/x
3. Step 3: Cross multiply
   152,971.93x = 211,016.27 × 142,147.21
4. Step 4: Simplify right side
   152,971.93x = 29,995,373,334.37
5. Step 5: Solve for x
   x = 29,995,373,334.37/152,971.93
6. Step 6: Final answer
   x = 196,084.17