Finding the Fourth Proportional to 100,892.38, 139,184.70 and 65,093.88

Step by Step Solution

1. Step 1: Write the proportion equation
   100,892.38 : 139,184.70 = 65,093.88 : x
2. Step 2: Convert to fraction form
   100,892.38/139,184.70 = 65,093.88/x
3. Step 3: Cross multiply
   100,892.38x = 139,184.70 × 65,093.88
4. Step 4: Simplify right side
   100,892.38x = 9,060,072,159.64
5. Step 5: Solve for x
   x = 9,060,072,159.64/100,892.38
6. Step 6: Final answer
   x = 89,799.37