Finding the Fourth Proportional to 78,594.42, 108,460.31 and 42,784.70

Step by Step Solution

1. Step 1: Write the proportion equation
   78,594.42 : 108,460.31 = 42,784.70 : x
2. Step 2: Convert to fraction form
   78,594.42/108,460.31 = 42,784.70/x
3. Step 3: Cross multiply
   78,594.42x = 108,460.31 × 42,784.70
4. Step 4: Simplify right side
   78,594.42x = 4,640,441,069.03
5. Step 5: Solve for x
   x = 4,640,441,069.03/78,594.42
6. Step 6: Final answer
   x = 59,042.88