Finding the Fourth Proportional to 78,644.76, 108,492.67 and 53,160.02

Step by Step Solution

1. Step 1: Write the proportion equation
   78,644.76 : 108,492.67 = 53,160.02 : x
2. Step 2: Convert to fraction form
   78,644.76/108,492.67 = 53,160.02/x
3. Step 3: Cross multiply
   78,644.76x = 108,492.67 × 53,160.02
4. Step 4: Simplify right side
   78,644.76x = 5,767,472,444.00
5. Step 5: Solve for x
   x = 5,767,472,444.00/78,644.76
6. Step 6: Final answer
   x = 73,335.75