Finding the Fourth Proportional to 111,173.06, 153,417.30 and 60,872.06

Step by Step Solution

1. Step 1: Write the proportion equation
   111,173.06 : 153,417.30 = 60,872.06 : x
2. Step 2: Convert to fraction form
   111,173.06/153,417.30 = 60,872.06/x
3. Step 3: Cross multiply
   111,173.06x = 153,417.30 × 60,872.06
4. Step 4: Simplify right side
   111,173.06x = 9,338,827,090.64
5. Step 5: Solve for x
   x = 9,338,827,090.64/111,173.06
6. Step 6: Final answer
   x = 84,002.61