Finding the Fourth Proportional to 82,342.52, 123,278.46 and 77,111.19

Step by Step Solution

1. Step 1: Write the proportion equation
   82,342.52 : 123,278.46 = 77,111.19 : x
2. Step 2: Convert to fraction form
   82,342.52/123,278.46 = 77,111.19/x
3. Step 3: Cross multiply
   82,342.52x = 123,278.46 × 77,111.19
4. Step 4: Simplify right side
   82,342.52x = 9,506,148,462.80
5. Step 5: Solve for x
   x = 9,506,148,462.80/82,342.52
6. Step 6: Final answer
   x = 115,446.41