Finding the Fourth Proportional to 107,654, 161,513.88 and 55,100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   107,654 : 161,513.88 = 55,100.72 : x
2. Step 2: Convert to fraction form
   107,654/161,513.88 = 55,100.72/x
3. Step 3: Cross multiply
   107,654x = 161,513.88 × 55,100.72
4. Step 4: Simplify right side
   107,654x = 8,899,531,077.99
5. Step 5: Solve for x
   x = 8,899,531,077.99/107,654
6. Step 6: Final answer
   x = 82,667.91