Finding the Fourth Proportional to 50,807.50, 70,113.40 and 28,145.99

Step by Step Solution

1. Step 1: Write the proportion equation
   50,807.50 : 70,113.40 = 28,145.99 : x
2. Step 2: Convert to fraction form
   50,807.50/70,113.40 = 28,145.99/x
3. Step 3: Cross multiply
   50,807.50x = 70,113.40 × 28,145.99
4. Step 4: Simplify right side
   50,807.50x = 1,973,411,055.27
5. Step 5: Solve for x
   x = 1,973,411,055.27/50,807.50
6. Step 6: Final answer
   x = 38,840.94