Finding the Fourth Proportional to 71,605, 98,841.36 and 61,492.69

Step by Step Solution

1. Step 1: Write the proportion equation
   71,605 : 98,841.36 = 61,492.69 : x
2. Step 2: Convert to fraction form
   71,605/98,841.36 = 61,492.69/x
3. Step 3: Cross multiply
   71,605x = 98,841.36 × 61,492.69
4. Step 4: Simplify right side
   71,605x = 6,078,021,109.66
5. Step 5: Solve for x
   x = 6,078,021,109.66/71,605
6. Step 6: Final answer
   x = 84,882.64