Finding the Fourth Proportional to 111,477, 153,788.02 and 66,156.89

Step by Step Solution

1. Step 1: Write the proportion equation
   111,477 : 153,788.02 = 66,156.89 : x
2. Step 2: Convert to fraction form
   111,477/153,788.02 = 66,156.89/x
3. Step 3: Cross multiply
   111,477x = 153,788.02 × 66,156.89
4. Step 4: Simplify right side
   111,477x = 10,174,137,122.46
5. Step 5: Solve for x
   x = 10,174,137,122.46/111,477
6. Step 6: Final answer
   x = 91,266.69