Finding the Fourth Proportional to 102,903.58, 141,962.46 and 72,714.77

Step by Step Solution

1. Step 1: Write the proportion equation
   102,903.58 : 141,962.46 = 72,714.77 : x
2. Step 2: Convert to fraction form
   102,903.58/141,962.46 = 72,714.77/x
3. Step 3: Cross multiply
   102,903.58x = 141,962.46 × 72,714.77
4. Step 4: Simplify right side
   102,903.58x = 10,322,767,975.94
5. Step 5: Solve for x
   x = 10,322,767,975.94/102,903.58
6. Step 6: Final answer
   x = 100,314.96