Finding the Fourth Proportional to 152,668.32, 210,682.47 and 89,018.42

Step by Step Solution

1. Step 1: Write the proportion equation
   152,668.32 : 210,682.47 = 89,018.42 : x
2. Step 2: Convert to fraction form
   152,668.32/210,682.47 = 89,018.42/x
3. Step 3: Cross multiply
   152,668.32x = 210,682.47 × 89,018.42
4. Step 4: Simplify right side
   152,668.32x = 18,754,619,547.69
5. Step 5: Solve for x
   x = 18,754,619,547.69/152,668.32
6. Step 6: Final answer
   x = 122,845.52