Finding the Fourth Proportional to 112,528.54, 155,308.48 and 64,809.52

Step by Step Solution

1. Step 1: Write the proportion equation
   112,528.54 : 155,308.48 = 64,809.52 : x
2. Step 2: Convert to fraction form
   112,528.54/155,308.48 = 64,809.52/x
3. Step 3: Cross multiply
   112,528.54x = 155,308.48 × 64,809.52
4. Step 4: Simplify right side
   112,528.54x = 10,065,467,264.19
5. Step 5: Solve for x
   x = 10,065,467,264.19/112,528.54
6. Step 6: Final answer
   x = 89,448.13