Finding the Fourth Proportional to 38,577.51, 57,870.37 and 12,276.10

Step by Step Solution

1. Step 1: Write the proportion equation
   38,577.51 : 57,870.37 = 12,276.10 : x
2. Step 2: Convert to fraction form
   38,577.51/57,870.37 = 12,276.10/x
3. Step 3: Cross multiply
   38,577.51x = 57,870.37 × 12,276.10
4. Step 4: Simplify right side
   38,577.51x = 710,422,387.78
5. Step 5: Solve for x
   x = 710,422,387.78/38,577.51
6. Step 6: Final answer
   x = 18,415.45