Finding the Fourth Proportional to 55,915, 77,162.70 and 30,763.96

Step by Step Solution

1. Step 1: Write the proportion equation
   55,915 : 77,162.70 = 30,763.96 : x
2. Step 2: Convert to fraction form
   55,915/77,162.70 = 30,763.96/x
3. Step 3: Cross multiply
   55,915x = 77,162.70 × 30,763.96
4. Step 4: Simplify right side
   55,915x = 2,373,830,216.29
5. Step 5: Solve for x
   x = 2,373,830,216.29/55,915
6. Step 6: Final answer
   x = 42,454.26