Finding the Fourth Proportional to 153,404.18, 211,647.02 and 89,696.88

Step by Step Solution

1. Step 1: Write the proportion equation
   153,404.18 : 211,647.02 = 89,696.88 : x
2. Step 2: Convert to fraction form
   153,404.18/211,647.02 = 89,696.88/x
3. Step 3: Cross multiply
   153,404.18x = 211,647.02 × 89,696.88
4. Step 4: Simplify right side
   153,404.18x = 18,984,077,355.30
5. Step 5: Solve for x
   x = 18,984,077,355.30/153,404.18
6. Step 6: Final answer
   x = 123,752.02