Finding the Fourth Proportional to 111,001.39, 153,178.81 and 60,699.31

Step by Step Solution

1. Step 1: Write the proportion equation
   111,001.39 : 153,178.81 = 60,699.31 : x
2. Step 2: Convert to fraction form
   111,001.39/153,178.81 = 60,699.31/x
3. Step 3: Cross multiply
   111,001.39x = 153,178.81 × 60,699.31
4. Step 4: Simplify right side
   111,001.39x = 9,297,848,073.62
5. Step 5: Solve for x
   x = 9,297,848,073.62/111,001.39
6. Step 6: Final answer
   x = 83,763.35