Finding the Fourth Proportional to 112,943.31, 155,869.68 and 64,552.37

Step by Step Solution

1. Step 1: Write the proportion equation
   112,943.31 : 155,869.68 = 64,552.37 : x
2. Step 2: Convert to fraction form
   112,943.31/155,869.68 = 64,552.37/x
3. Step 3: Cross multiply
   112,943.31x = 155,869.68 × 64,552.37
4. Step 4: Simplify right side
   112,943.31x = 10,061,756,475.79
5. Step 5: Solve for x
   x = 10,061,756,475.79/112,943.31
6. Step 6: Final answer
   x = 89,086.79