Finding the Fourth Proportional to 120,870.78, 181,306.15 and 45,973.62

Step by Step Solution

1. Step 1: Write the proportion equation
   120,870.78 : 181,306.15 = 45,973.62 : x
2. Step 2: Convert to fraction form
   120,870.78/181,306.15 = 45,973.62/x
3. Step 3: Cross multiply
   120,870.78x = 181,306.15 × 45,973.62
4. Step 4: Simplify right side
   120,870.78x = 8,335,300,043.76
5. Step 5: Solve for x
   x = 8,335,300,043.76/120,870.78
6. Step 6: Final answer
   x = 68,960.42