Finding the Fourth Proportional to 55,875.32, 77,108.50 and 30,725

Step by Step Solution

1. Step 1: Write the proportion equation
   55,875.32 : 77,108.50 = 30,725 : x
2. Step 2: Convert to fraction form
   55,875.32/77,108.50 = 30,725/x
3. Step 3: Cross multiply
   55,875.32x = 77,108.50 × 30,725
4. Step 4: Simplify right side
   55,875.32x = 2,369,158,662.50
5. Step 5: Solve for x
   x = 2,369,158,662.50/55,875.32
6. Step 6: Final answer
   x = 42,400.81