Finding the Fourth Proportional to 28,365.18, 42,576.72 and 23,419.05

Step by Step Solution

1. Step 1: Write the proportion equation
   28,365.18 : 42,576.72 = 23,419.05 : x
2. Step 2: Convert to fraction form
   28,365.18/42,576.72 = 23,419.05/x
3. Step 3: Cross multiply
   28,365.18x = 42,576.72 × 23,419.05
4. Step 4: Simplify right side
   28,365.18x = 997,106,334.52
5. Step 5: Solve for x
   x = 997,106,334.52/28,365.18
6. Step 6: Final answer
   x = 35,152.48