Finding the Fourth Proportional to 55,870.86, 83,804.58 and 16,428.72

Step by Step Solution

1. Step 1: Write the proportion equation
   55,870.86 : 83,804.58 = 16,428.72 : x
2. Step 2: Convert to fraction form
   55,870.86/83,804.58 = 16,428.72/x
3. Step 3: Cross multiply
   55,870.86x = 83,804.58 × 16,428.72
4. Step 4: Simplify right side
   55,870.86x = 1,376,801,979.54
5. Step 5: Solve for x
   x = 1,376,801,979.54/55,870.86
6. Step 6: Final answer
   x = 24,642.58