Finding the Fourth Proportional to 90,300.68, 124,614.60 and 52,059.96

Step by Step Solution

1. Step 1: Write the proportion equation
   90,300.68 : 124,614.60 = 52,059.96 : x
2. Step 2: Convert to fraction form
   90,300.68/124,614.60 = 52,059.96/x
3. Step 3: Cross multiply
   90,300.68x = 124,614.60 × 52,059.96
4. Step 4: Simplify right side
   90,300.68x = 6,487,431,091.42
5. Step 5: Solve for x
   x = 6,487,431,091.42/90,300.68
6. Step 6: Final answer
   x = 71,842.55