Finding the Fourth Proportional to 111,128.17, 153,356.90 and 60,140.92

Step by Step Solution

1. Step 1: Write the proportion equation
   111,128.17 : 153,356.90 = 60,140.92 : x
2. Step 2: Convert to fraction form
   111,128.17/153,356.90 = 60,140.92/x
3. Step 3: Cross multiply
   111,128.17x = 153,356.90 × 60,140.92
4. Step 4: Simplify right side
   111,128.17x = 9,223,025,054.35
5. Step 5: Solve for x
   x = 9,223,025,054.35/111,128.17
6. Step 6: Final answer
   x = 82,994.48