Finding the Fourth Proportional to 130,018.06, 194,988.45 and 55,137.10

Step by Step Solution

1. Step 1: Write the proportion equation
   130,018.06 : 194,988.45 = 55,137.10 : x
2. Step 2: Convert to fraction form
   130,018.06/194,988.45 = 55,137.10/x
3. Step 3: Cross multiply
   130,018.06x = 194,988.45 × 55,137.10
4. Step 4: Simplify right side
   130,018.06x = 10,751,097,666.50
5. Step 5: Solve for x
   x = 10,751,097,666.50/130,018.06
6. Step 6: Final answer
   x = 82,689.26