Finding the Fourth Proportional to 127,412.10, 191,141.10 and 52,491.30

Step by Step Solution

1. Step 1: Write the proportion equation
   127,412.10 : 191,141.10 = 52,491.30 : x
2. Step 2: Convert to fraction form
   127,412.10/191,141.10 = 52,491.30/x
3. Step 3: Cross multiply
   127,412.10x = 191,141.10 × 52,491.30
4. Step 4: Simplify right side
   127,412.10x = 10,033,244,822.43
5. Step 5: Solve for x
   x = 10,033,244,822.43/127,412.10
6. Step 6: Final answer
   x = 78,746.40