Finding the Fourth Proportional to 127,696.23, 191,513.52 and 56,579.55

Step by Step Solution

1. Step 1: Write the proportion equation
   127,696.23 : 191,513.52 = 56,579.55 : x
2. Step 2: Convert to fraction form
   127,696.23/191,513.52 = 56,579.55/x
3. Step 3: Cross multiply
   127,696.23x = 191,513.52 × 56,579.55
4. Step 4: Simplify right side
   127,696.23x = 10,835,748,780.52
5. Step 5: Solve for x
   x = 10,835,748,780.52/127,696.23
6. Step 6: Final answer
   x = 84,855.67