Finding the Fourth Proportional to 111,018.06, 153,018.33 and 84,151.98

Step by Step Solution

1. Step 1: Write the proportion equation
   111,018.06 : 153,018.33 = 84,151.98 : x
2. Step 2: Convert to fraction form
   111,018.06/153,018.33 = 84,151.98/x
3. Step 3: Cross multiply
   111,018.06x = 153,018.33 × 84,151.98
4. Step 4: Simplify right side
   111,018.06x = 12,876,795,445.79
5. Step 5: Solve for x
   x = 12,876,795,445.79/111,018.06
6. Step 6: Final answer
   x = 115,988.29