Finding the Fourth Proportional to 111,518.10, 153,824.94 and 66,164.00

Step by Step Solution

1. Step 1: Write the proportion equation
   111,518.10 : 153,824.94 = 66,164.00 : x
2. Step 2: Convert to fraction form
   111,518.10/153,824.94 = 66,164.00/x
3. Step 3: Cross multiply
   111,518.10x = 153,824.94 × 66,164.00
4. Step 4: Simplify right side
   111,518.10x = 10,177,672,561.04
5. Step 5: Solve for x
   x = 10,177,672,561.04/111,518.10
6. Step 6: Final answer
   x = 91,264.76