Finding the Fourth Proportional to 55,962.32, 77,228.52 and 30,812.72

Step by Step Solution

1. Step 1: Write the proportion equation
   55,962.32 : 77,228.52 = 30,812.72 : x
2. Step 2: Convert to fraction form
   55,962.32/77,228.52 = 30,812.72/x
3. Step 3: Cross multiply
   55,962.32x = 77,228.52 × 30,812.72
4. Step 4: Simplify right side
   55,962.32x = 2,379,620,762.77
5. Step 5: Solve for x
   x = 2,379,620,762.77/55,962.32
6. Step 6: Final answer
   x = 42,521.84