Finding the Fourth Proportional to 108,518.72, 149,759.68 and 60,774.08

Step by Step Solution

1. Step 1: Write the proportion equation
   108,518.72 : 149,759.68 = 60,774.08 : x
2. Step 2: Convert to fraction form
   108,518.72/149,759.68 = 60,774.08/x
3. Step 3: Cross multiply
   108,518.72x = 149,759.68 × 60,774.08
4. Step 4: Simplify right side
   108,518.72x = 9,101,506,773.09
5. Step 5: Solve for x
   x = 9,101,506,773.09/108,518.72
6. Step 6: Final answer
   x = 83,870.38