Finding the Fourth Proportional to 103,524.48, 142,872.90 and 61,074.72

Step by Step Solution

1. Step 1: Write the proportion equation
   103,524.48 : 142,872.90 = 61,074.72 : x
2. Step 2: Convert to fraction form
   103,524.48/142,872.90 = 61,074.72/x
3. Step 3: Cross multiply
   103,524.48x = 142,872.90 × 61,074.72
4. Step 4: Simplify right side
   103,524.48x = 8,725,922,363.09
5. Step 5: Solve for x
   x = 8,725,922,363.09/103,524.48
6. Step 6: Final answer
   x = 84,288.49