Finding the Fourth Proportional to 111,981.86, 154,533.65 and 60,994.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111,981.86 : 154,533.65 = 60,994.42 : x
2. Step 2: Convert to fraction form
   111,981.86/154,533.65 = 60,994.42/x
3. Step 3: Cross multiply
   111,981.86x = 154,533.65 × 60,994.42
4. Step 4: Simplify right side
   111,981.86x = 9,425,690,810.38
5. Step 5: Solve for x
   x = 9,425,690,810.38/111,981.86
6. Step 6: Final answer
   x = 84,171.59