Finding the Fourth Proportional to 112,730.96, 155,568.42 and 64,984.04

Step by Step Solution

1. Step 1: Write the proportion equation
   112,730.96 : 155,568.42 = 64,984.04 : x
2. Step 2: Convert to fraction form
   112,730.96/155,568.42 = 64,984.04/x
3. Step 3: Cross multiply
   112,730.96x = 155,568.42 × 64,984.04
4. Step 4: Simplify right side
   112,730.96x = 10,109,464,428.02
5. Step 5: Solve for x
   x = 10,109,464,428.02/112,730.96
6. Step 6: Final answer
   x = 89,677.80