Finding the Fourth Proportional to 152,271.54, 210,132.17 and 84,287.05

Step by Step Solution

1. Step 1: Write the proportion equation
   152,271.54 : 210,132.17 = 84,287.05 : x
2. Step 2: Convert to fraction form
   152,271.54/210,132.17 = 84,287.05/x
3. Step 3: Cross multiply
   152,271.54x = 210,132.17 × 84,287.05
4. Step 4: Simplify right side
   152,271.54x = 17,711,421,153.82
5. Step 5: Solve for x
   x = 17,711,421,153.82/152,271.54
6. Step 6: Final answer
   x = 116,314.72