Finding the Fourth Proportional to 152,934.50, 210,964.59 and 142,109.79

Step by Step Solution

1. Step 1: Write the proportion equation
   152,934.50 : 210,964.59 = 142,109.79 : x
2. Step 2: Convert to fraction form
   152,934.50/210,964.59 = 142,109.79/x
3. Step 3: Cross multiply
   152,934.50x = 210,964.59 × 142,109.79
4. Step 4: Simplify right side
   152,934.50x = 29,980,133,582.34
5. Step 5: Solve for x
   x = 29,980,133,582.34/152,934.50
6. Step 6: Final answer
   x = 196,032.51