Finding the Fourth Proportional to 111,693, 154,136.34 and 61,392

Step by Step Solution

1. Step 1: Write the proportion equation
   111,693 : 154,136.34 = 61,392 : x
2. Step 2: Convert to fraction form
   111,693/154,136.34 = 61,392/x
3. Step 3: Cross multiply
   111,693x = 154,136.34 × 61,392
4. Step 4: Simplify right side
   111,693x = 9,462,738,185.28
5. Step 5: Solve for x
   x = 9,462,738,185.28/111,693
6. Step 6: Final answer
   x = 84,720.96