Finding the Fourth Proportional to 107,969.01, 162,002.72 and 55,415.40

Step by Step Solution

1. Step 1: Write the proportion equation
   107,969.01 : 162,002.72 = 55,415.40 : x
2. Step 2: Convert to fraction form
   107,969.01/162,002.72 = 55,415.40/x
3. Step 3: Cross multiply
   107,969.01x = 162,002.72 × 55,415.40
4. Step 4: Simplify right side
   107,969.01x = 8,977,445,529.89
5. Step 5: Solve for x
   x = 8,977,445,529.89/107,969.01
6. Step 6: Final answer
   x = 83,148.35