Finding the Fourth Proportional to 111,458.55, 153,783.05 and 66,098.82

Step by Step Solution

1. Step 1: Write the proportion equation
   111,458.55 : 153,783.05 = 66,098.82 : x
2. Step 2: Convert to fraction form
   111,458.55/153,783.05 = 66,098.82/x
3. Step 3: Cross multiply
   111,458.55x = 153,783.05 × 66,098.82
4. Step 4: Simplify right side
   111,458.55x = 10,164,877,810.51
5. Step 5: Solve for x
   x = 10,164,877,810.51/111,458.55
6. Step 6: Final answer
   x = 91,198.73