Finding the Fourth Proportional to 111,400.56, 153,732.72 and 61,099.56

Step by Step Solution

1. Step 1: Write the proportion equation
   111,400.56 : 153,732.72 = 61,099.56 : x
2. Step 2: Convert to fraction form
   111,400.56/153,732.72 = 61,099.56/x
3. Step 3: Cross multiply
   111,400.56x = 153,732.72 × 61,099.56
4. Step 4: Simplify right side
   111,400.56x = 9,393,001,549.60
5. Step 5: Solve for x
   x = 9,393,001,549.60/111,400.56
6. Step 6: Final answer
   x = 84,317.36