Finding the Fourth Proportional to 119,279.18, 164,602.49 and 64,830.06

Step by Step Solution

1. Step 1: Write the proportion equation
   119,279.18 : 164,602.49 = 64,830.06 : x
2. Step 2: Convert to fraction form
   119,279.18/164,602.49 = 64,830.06/x
3. Step 3: Cross multiply
   119,279.18x = 164,602.49 × 64,830.06
4. Step 4: Simplify right side
   119,279.18x = 10,671,188,978.70
5. Step 5: Solve for x
   x = 10,671,188,978.70/119,279.18
6. Step 6: Final answer
   x = 89,463.97