Finding the Fourth Proportional to 65,300.49, 90,088.74 and 42,632.19

Step by Step Solution

1. Step 1: Write the proportion equation
   65,300.49 : 90,088.74 = 42,632.19 : x
2. Step 2: Convert to fraction form
   65,300.49/90,088.74 = 42,632.19/x
3. Step 3: Cross multiply
   65,300.49x = 90,088.74 × 42,632.19
4. Step 4: Simplify right side
   65,300.49x = 3,840,680,280.54
5. Step 5: Solve for x
   x = 3,840,680,280.54/65,300.49
6. Step 6: Final answer
   x = 58,815.49