Finding the Fourth Proportional to 133,411.04, 184,111.98 and 72,978.08

Step by Step Solution

1. Step 1: Write the proportion equation
   133,411.04 : 184,111.98 = 72,978.08 : x
2. Step 2: Convert to fraction form
   133,411.04/184,111.98 = 72,978.08/x
3. Step 3: Cross multiply
   133,411.04x = 184,111.98 × 72,978.08
4. Step 4: Simplify right side
   133,411.04x = 13,436,138,805.40
5. Step 5: Solve for x
   x = 13,436,138,805.40/133,411.04
6. Step 6: Final answer
   x = 100,712.35