Finding the Fourth Proportional to 152,796.63, 210,872.69 and 89,154.93

Step by Step Solution

1. Step 1: Write the proportion equation
   152,796.63 : 210,872.69 = 89,154.93 : x
2. Step 2: Convert to fraction form
   152,796.63/210,872.69 = 89,154.93/x
3. Step 3: Cross multiply
   152,796.63x = 210,872.69 × 89,154.93
4. Step 4: Simplify right side
   152,796.63x = 18,800,338,902.20
5. Step 5: Solve for x
   x = 18,800,338,902.20/152,796.63
6. Step 6: Final answer
   x = 123,041.58