Finding the Fourth Proportional to 98,736.72, 136,256.02 and 53,414.52

Step by Step Solution

1. Step 1: Write the proportion equation
   98,736.72 : 136,256.02 = 53,414.52 : x
2. Step 2: Convert to fraction form
   98,736.72/136,256.02 = 53,414.52/x
3. Step 3: Cross multiply
   98,736.72x = 136,256.02 × 53,414.52
4. Step 4: Simplify right side
   98,736.72x = 7,278,049,905.41
5. Step 5: Solve for x
   x = 7,278,049,905.41/98,736.72
6. Step 6: Final answer
   x = 73,711.68