Finding the Fourth Proportional to 111,030, 153,221.40 and 60,729

Step by Step Solution

1. Step 1: Write the proportion equation
   111,030 : 153,221.40 = 60,729 : x
2. Step 2: Convert to fraction form
   111,030/153,221.40 = 60,729/x
3. Step 3: Cross multiply
   111,030x = 153,221.40 × 60,729
4. Step 4: Simplify right side
   111,030x = 9,304,982,400.60
5. Step 5: Solve for x
   x = 9,304,982,400.60/111,030
6. Step 6: Final answer
   x = 83,806.02