Finding the Fourth Proportional to 130,263.31, 179,766.59 and 72,902.18

Step by Step Solution

1. Step 1: Write the proportion equation
   130,263.31 : 179,766.59 = 72,902.18 : x
2. Step 2: Convert to fraction form
   130,263.31/179,766.59 = 72,902.18/x
3. Step 3: Cross multiply
   130,263.31x = 179,766.59 × 72,902.18
4. Step 4: Simplify right side
   130,263.31x = 13,105,376,302.17
5. Step 5: Solve for x
   x = 13,105,376,302.17/130,263.31
6. Step 6: Final answer
   x = 100,606.81