Finding the Fourth Proportional to 55,579, 76,699.04 and 30,428.52

Step by Step Solution

1. Step 1: Write the proportion equation
   55,579 : 76,699.04 = 30,428.52 : x
2. Step 2: Convert to fraction form
   55,579/76,699.04 = 30,428.52/x
3. Step 3: Cross multiply
   55,579x = 76,699.04 × 30,428.52
4. Step 4: Simplify right side
   55,579x = 2,333,838,272.62
5. Step 5: Solve for x
   x = 2,333,838,272.62/55,579
6. Step 6: Final answer
   x = 41,991.37