Finding the Fourth Proportional to 55,900.96, 77,139.88 and 30,407.10

Step by Step Solution

1. Step 1: Write the proportion equation
   55,900.96 : 77,139.88 = 30,407.10 : x
2. Step 2: Convert to fraction form
   55,900.96/77,139.88 = 30,407.10/x
3. Step 3: Cross multiply
   55,900.96x = 77,139.88 × 30,407.10
4. Step 4: Simplify right side
   55,900.96x = 2,345,600,045.15
5. Step 5: Solve for x
   x = 2,345,600,045.15/55,900.96
6. Step 6: Final answer
   x = 41,959.92