Finding the Fourth Proportional to 27,134.72, 37,358.88 and 21,158.72

Step by Step Solution

1. Step 1: Write the proportion equation
   27,134.72 : 37,358.88 = 21,158.72 : x
2. Step 2: Convert to fraction form
   27,134.72/37,358.88 = 21,158.72/x
3. Step 3: Cross multiply
   27,134.72x = 37,358.88 × 21,158.72
4. Step 4: Simplify right side
   27,134.72x = 790,466,081.43
5. Step 5: Solve for x
   x = 790,466,081.43/27,134.72
6. Step 6: Final answer
   x = 29,131.17