Finding the Fourth Proportional to 120,978.28, 181,491.18 and 42,095.08

Step by Step Solution

1. Step 1: Write the proportion equation
   120,978.28 : 181,491.18 = 42,095.08 : x
2. Step 2: Convert to fraction form
   120,978.28/181,491.18 = 42,095.08/x
3. Step 3: Cross multiply
   120,978.28x = 181,491.18 × 42,095.08
4. Step 4: Simplify right side
   120,978.28x = 7,639,885,741.39
5. Step 5: Solve for x
   x = 7,639,885,741.39/120,978.28
6. Step 6: Final answer
   x = 63,150.89