Finding the Fourth Proportional to 42,950.15, 59,253.69 and 28,807.55

Step by Step Solution

1. Step 1: Write the proportion equation
   42,950.15 : 59,253.69 = 28,807.55 : x
2. Step 2: Convert to fraction form
   42,950.15/59,253.69 = 28,807.55/x
3. Step 3: Cross multiply
   42,950.15x = 59,253.69 × 28,807.55
4. Step 4: Simplify right side
   42,950.15x = 1,706,953,341.09
5. Step 5: Solve for x
   x = 1,706,953,341.09/42,950.15
6. Step 6: Final answer
   x = 39,742.67