Finding the Fourth Proportional to 109,036.80, 150,486.72 and 61,294.08

Step by Step Solution

1. Step 1: Write the proportion equation
   109,036.80 : 150,486.72 = 61,294.08 : x
2. Step 2: Convert to fraction form
   109,036.80/150,486.72 = 61,294.08/x
3. Step 3: Cross multiply
   109,036.80x = 150,486.72 × 61,294.08
4. Step 4: Simplify right side
   109,036.80x = 9,223,945,054.62
5. Step 5: Solve for x
   x = 9,223,945,054.62/109,036.80
6. Step 6: Final answer
   x = 84,594.79