Finding the Fourth Proportional to 112,892.96, 155,664.57 and 72,002.39

Step by Step Solution

1. Step 1: Write the proportion equation
   112,892.96 : 155,664.57 = 72,002.39 : x
2. Step 2: Convert to fraction form
   112,892.96/155,664.57 = 72,002.39/x
3. Step 3: Cross multiply
   112,892.96x = 155,664.57 × 72,002.39
4. Step 4: Simplify right side
   112,892.96x = 11,208,220,300.00
5. Step 5: Solve for x
   x = 11,208,220,300.00/112,892.96
6. Step 6: Final answer
   x = 99,281.84