Finding the Fourth Proportional to 65,510.68, 90,376.73 and 42,810.27

Step by Step Solution

1. Step 1: Write the proportion equation
   65,510.68 : 90,376.73 = 42,810.27 : x
2. Step 2: Convert to fraction form
   65,510.68/90,376.73 = 42,810.27/x
3. Step 3: Cross multiply
   65,510.68x = 90,376.73 × 42,810.27
4. Step 4: Simplify right side
   65,510.68x = 3,869,051,998.97
5. Step 5: Solve for x
   x = 3,869,051,998.97/65,510.68
6. Step 6: Final answer
   x = 59,059.87