Finding the Fourth Proportional to 98,144.72, 135,440.52 and 53,432.72

Step by Step Solution

1. Step 1: Write the proportion equation
   98,144.72 : 135,440.52 = 53,432.72 : x
2. Step 2: Convert to fraction form
   98,144.72/135,440.52 = 53,432.72/x
3. Step 3: Cross multiply
   98,144.72x = 135,440.52 × 53,432.72
4. Step 4: Simplify right side
   98,144.72x = 7,236,955,381.81
5. Step 5: Solve for x
   x = 7,236,955,381.81/98,144.72
6. Step 6: Final answer
   x = 73,737.59