Finding the Fourth Proportional to 111,435.45, 153,780.02 and 60,448.06

Step by Step Solution

1. Step 1: Write the proportion equation
   111,435.45 : 153,780.02 = 60,448.06 : x
2. Step 2: Convert to fraction form
   111,435.45/153,780.02 = 60,448.06/x
3. Step 3: Cross multiply
   111,435.45x = 153,780.02 × 60,448.06
4. Step 4: Simplify right side
   111,435.45x = 9,295,703,875.76
5. Step 5: Solve for x
   x = 9,295,703,875.76/111,435.45
6. Step 6: Final answer
   x = 83,417.83