Finding the Fourth Proportional to 133,499.85, 184,229.12 and 72,246

Step by Step Solution

1. Step 1: Write the proportion equation
   133,499.85 : 184,229.12 = 72,246 : x
2. Step 2: Convert to fraction form
   133,499.85/184,229.12 = 72,246/x
3. Step 3: Cross multiply
   133,499.85x = 184,229.12 × 72,246
4. Step 4: Simplify right side
   133,499.85x = 13,309,817,003.52
5. Step 5: Solve for x
   x = 13,309,817,003.52/133,499.85
6. Step 6: Final answer
   x = 99,699.12