Finding the Fourth Proportional to 37,807.52, 52,172.16 and 21,890.84

Step by Step Solution

1. Step 1: Write the proportion equation
   37,807.52 : 52,172.16 = 21,890.84 : x
2. Step 2: Convert to fraction form
   37,807.52/52,172.16 = 21,890.84/x
3. Step 3: Cross multiply
   37,807.52x = 52,172.16 × 21,890.84
4. Step 4: Simplify right side
   37,807.52x = 1,142,092,407.01
5. Step 5: Solve for x
   x = 1,142,092,407.01/37,807.52
6. Step 6: Final answer
   x = 30,208.08