Finding the Fourth Proportional to 99,104.72, 148,615.16 and 39,924.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,104.72 : 148,615.16 = 39,924.50 : x
2. Step 2: Convert to fraction form
   99,104.72/148,615.16 = 39,924.50/x
3. Step 3: Cross multiply
   99,104.72x = 148,615.16 × 39,924.50
4. Step 4: Simplify right side
   99,104.72x = 5,933,385,012.72
5. Step 5: Solve for x
   x = 5,933,385,012.72/99,104.72
6. Step 6: Final answer
   x = 59,869.86