Finding the Fourth Proportional to 73,749.30, 110,672.55 and 42,159.30

Step by Step Solution

1. Step 1: Write the proportion equation
   73,749.30 : 110,672.55 = 42,159.30 : x
2. Step 2: Convert to fraction form
   73,749.30/110,672.55 = 42,159.30/x
3. Step 3: Cross multiply
   73,749.30x = 110,672.55 × 42,159.30
4. Step 4: Simplify right side
   73,749.30x = 4,665,877,237.22
5. Step 5: Solve for x
   x = 4,665,877,237.22/73,749.30
6. Step 6: Final answer
   x = 63,266.73