Finding the Fourth Proportional to 130,870.98, 196,287.57 and 42,112.98

Step by Step Solution

1. Step 1: Write the proportion equation
   130,870.98 : 196,287.57 = 42,112.98 : x
2. Step 2: Convert to fraction form
   130,870.98/196,287.57 = 42,112.98/x
3. Step 3: Cross multiply
   130,870.98x = 196,287.57 × 42,112.98
4. Step 4: Simplify right side
   130,870.98x = 8,266,254,509.66
5. Step 5: Solve for x
   x = 8,266,254,509.66/130,870.98
6. Step 6: Final answer
   x = 63,163.39