Finding the Fourth Proportional to 149,059.72, 223,675.69 and 78,939.03

Step by Step Solution

1. Step 1: Write the proportion equation
   149,059.72 : 223,675.69 = 78,939.03 : x
2. Step 2: Convert to fraction form
   149,059.72/223,675.69 = 78,939.03/x
3. Step 3: Cross multiply
   149,059.72x = 223,675.69 × 78,939.03
4. Step 4: Simplify right side
   149,059.72x = 17,656,742,003.18
5. Step 5: Solve for x
   x = 17,656,742,003.18/149,059.72
6. Step 6: Final answer
   x = 118,454.15