Finding the Fourth Proportional to 152,180.87, 210,082.83 and 101,278.31

Step by Step Solution

1. Step 1: Write the proportion equation
   152,180.87 : 210,082.83 = 101,278.31 : x
2. Step 2: Convert to fraction form
   152,180.87/210,082.83 = 101,278.31/x
3. Step 3: Cross multiply
   152,180.87x = 210,082.83 × 101,278.31
4. Step 4: Simplify right side
   152,180.87x = 21,276,833,982.42
5. Step 5: Solve for x
   x = 21,276,833,982.42/152,180.87
6. Step 6: Final answer
   x = 139,812.80