Finding the Fourth Proportional to 111,156.40, 153,395.82 and 60,855.40

Step by Step Solution

1. Step 1: Write the proportion equation
   111,156.40 : 153,395.82 = 60,855.40 : x
2. Step 2: Convert to fraction form
   111,156.40/153,395.82 = 60,855.40/x
3. Step 3: Cross multiply
   111,156.40x = 153,395.82 × 60,855.40
4. Step 4: Simplify right side
   111,156.40x = 9,334,963,984.43
5. Step 5: Solve for x
   x = 9,334,963,984.43/111,156.40
6. Step 6: Final answer
   x = 83,980.45