Finding the Fourth Proportional to 38,925.96, 58,175.63 and 28,418.10

Step by Step Solution

1. Step 1: Write the proportion equation
   38,925.96 : 58,175.63 = 28,418.10 : x
2. Step 2: Convert to fraction form
   38,925.96/58,175.63 = 28,418.10/x
3. Step 3: Cross multiply
   38,925.96x = 58,175.63 × 28,418.10
4. Step 4: Simplify right side
   38,925.96x = 1,653,240,870.90
5. Step 5: Solve for x
   x = 1,653,240,870.90/38,925.96
6. Step 6: Final answer
   x = 42,471.42