Finding the Fourth Proportional to 146,787.57, 202,492.74 and 86,319.72

Step by Step Solution

1. Step 1: Write the proportion equation
   146,787.57 : 202,492.74 = 86,319.72 : x
2. Step 2: Convert to fraction form
   146,787.57/202,492.74 = 86,319.72/x
3. Step 3: Cross multiply
   146,787.57x = 202,492.74 × 86,319.72
4. Step 4: Simplify right side
   146,787.57x = 17,479,116,618.83
5. Step 5: Solve for x
   x = 17,479,116,618.83/146,787.57
6. Step 6: Final answer
   x = 119,077.63