Finding the Fourth Proportional to 78,342.78, 108,112.08 and 42,533.29

Step by Step Solution

1. Step 1: Write the proportion equation
   78,342.78 : 108,112.08 = 42,533.29 : x
2. Step 2: Convert to fraction form
   78,342.78/108,112.08 = 42,533.29/x
3. Step 3: Cross multiply
   78,342.78x = 108,112.08 × 42,533.29
4. Step 4: Simplify right side
   78,342.78x = 4,598,362,451.14
5. Step 5: Solve for x
   x = 4,598,362,451.14/78,342.78
6. Step 6: Final answer
   x = 58,695.42