Finding the Fourth Proportional to 111,457.05, 153,780.98 and 66,097.32

Step by Step Solution

1. Step 1: Write the proportion equation
   111,457.05 : 153,780.98 = 66,097.32 : x
2. Step 2: Convert to fraction form
   111,457.05/153,780.98 = 66,097.32/x
3. Step 3: Cross multiply
   111,457.05x = 153,780.98 × 66,097.32
4. Step 4: Simplify right side
   111,457.05x = 10,164,510,314.49
5. Step 5: Solve for x
   x = 10,164,510,314.49/111,457.05
6. Step 6: Final answer
   x = 91,196.66