Finding the Fourth Proportional to 120,899.10, 181,244.70 and 42,003.06

Step by Step Solution

1. Step 1: Write the proportion equation
   120,899.10 : 181,244.70 = 42,003.06 : x
2. Step 2: Convert to fraction form
   120,899.10/181,244.70 = 42,003.06/x
3. Step 3: Cross multiply
   120,899.10x = 181,244.70 × 42,003.06
4. Step 4: Simplify right side
   120,899.10x = 7,612,832,008.78
5. Step 5: Solve for x
   x = 7,612,832,008.78/120,899.10
6. Step 6: Final answer
   x = 62,968.48