Finding the Fourth Proportional to 112,329.32, 155,001.74 and 64,598.04

Step by Step Solution

1. Step 1: Write the proportion equation
   112,329.32 : 155,001.74 = 64,598.04 : x
2. Step 2: Convert to fraction form
   112,329.32/155,001.74 = 64,598.04/x
3. Step 3: Cross multiply
   112,329.32x = 155,001.74 × 64,598.04
4. Step 4: Simplify right side
   112,329.32x = 10,012,808,277.60
5. Step 5: Solve for x
   x = 10,012,808,277.60/112,329.32
6. Step 6: Final answer
   x = 89,137.98