Finding the Fourth Proportional to 111,186.12, 153,438.72 and 60,881.88

Step by Step Solution

1. Step 1: Write the proportion equation
   111,186.12 : 153,438.72 = 60,881.88 : x
2. Step 2: Convert to fraction form
   111,186.12/153,438.72 = 60,881.88/x
3. Step 3: Cross multiply
   111,186.12x = 153,438.72 × 60,881.88
4. Step 4: Simplify right side
   111,186.12x = 9,341,637,738.39
5. Step 5: Solve for x
   x = 9,341,637,738.39/111,186.12
6. Step 6: Final answer
   x = 84,018.02