Finding the Fourth Proportional to 139,415.25, 209,005.29 and 60,470.01

Step by Step Solution

1. Step 1: Write the proportion equation
   139,415.25 : 209,005.29 = 60,470.01 : x
2. Step 2: Convert to fraction form
   139,415.25/209,005.29 = 60,470.01/x
3. Step 3: Cross multiply
   139,415.25x = 209,005.29 × 60,470.01
4. Step 4: Simplify right side
   139,415.25x = 12,638,551,976.35
5. Step 5: Solve for x
   x = 12,638,551,976.35/139,415.25
6. Step 6: Final answer
   x = 90,654.01