Finding the Fourth Proportional to 78,592.35, 108,457.46 and 42,782.63

Step by Step Solution

1. Step 1: Write the proportion equation
   78,592.35 : 108,457.46 = 42,782.63 : x
2. Step 2: Convert to fraction form
   78,592.35/108,457.46 = 42,782.63/x
3. Step 3: Cross multiply
   78,592.35x = 108,457.46 × 42,782.63
4. Step 4: Simplify right side
   78,592.35x = 4,640,095,032.43
5. Step 5: Solve for x
   x = 4,640,095,032.43/78,592.35
6. Step 6: Final answer
   x = 59,040.03