Finding the Fourth Proportional to 111,638.27, 167,462.89 and 45,070.09

Step by Step Solution

1. Step 1: Write the proportion equation
   111,638.27 : 167,462.89 = 45,070.09 : x
2. Step 2: Convert to fraction form
   111,638.27/167,462.89 = 45,070.09/x
3. Step 3: Cross multiply
   111,638.27x = 167,462.89 × 45,070.09
4. Step 4: Simplify right side
   111,638.27x = 7,547,566,992.63
5. Step 5: Solve for x
   x = 7,547,566,992.63/111,638.27
6. Step 6: Final answer
   x = 67,607.34