Finding the Fourth Proportional to 78,422.48, 108,224.63 and 42,614.81

Step by Step Solution

1. Step 1: Write the proportion equation
   78,422.48 : 108,224.63 = 42,614.81 : x
2. Step 2: Convert to fraction form
   78,422.48/108,224.63 = 42,614.81/x
3. Step 3: Cross multiply
   78,422.48x = 108,224.63 × 42,614.81
4. Step 4: Simplify right side
   78,422.48x = 4,611,971,290.57
5. Step 5: Solve for x
   x = 4,611,971,290.57/78,422.48
6. Step 6: Final answer
   x = 58,809.31