Finding the Fourth Proportional to 111,780.02, 154,243.49 and 64,030.52

Step by Step Solution

1. Step 1: Write the proportion equation
   111,780.02 : 154,243.49 = 64,030.52 : x
2. Step 2: Convert to fraction form
   111,780.02/154,243.49 = 64,030.52/x
3. Step 3: Cross multiply
   111,780.02x = 154,243.49 × 64,030.52
4. Step 4: Simplify right side
   111,780.02x = 9,876,290,871.31
5. Step 5: Solve for x
   x = 9,876,290,871.31/111,780.02
6. Step 6: Final answer
   x = 88,354.71