Finding the Fourth Proportional to 130,978.56, 196,472.64 and 42,233.34

Step by Step Solution

1. Step 1: Write the proportion equation
   130,978.56 : 196,472.64 = 42,233.34 : x
2. Step 2: Convert to fraction form
   130,978.56/196,472.64 = 42,233.34/x
3. Step 3: Cross multiply
   130,978.56x = 196,472.64 × 42,233.34
4. Step 4: Simplify right side
   130,978.56x = 8,297,695,805.82
5. Step 5: Solve for x
   x = 8,297,695,805.82/130,978.56
6. Step 6: Final answer
   x = 63,351.56