Finding the Fourth Proportional to 90,428.83, 124,766.72 and 52,185.69

Step by Step Solution

1. Step 1: Write the proportion equation
   90,428.83 : 124,766.72 = 52,185.69 : x
2. Step 2: Convert to fraction form
   90,428.83/124,766.72 = 52,185.69/x
3. Step 3: Cross multiply
   90,428.83x = 124,766.72 × 52,185.69
4. Step 4: Simplify right side
   90,428.83x = 6,511,037,372.24
5. Step 5: Solve for x
   x = 6,511,037,372.24/90,428.83
6. Step 6: Final answer
   x = 72,001.79