Finding the Fourth Proportional to 102,500.16, 153,756.72 and 43,328.04

Step by Step Solution

1. Step 1: Write the proportion equation
   102,500.16 : 153,756.72 = 43,328.04 : x
2. Step 2: Convert to fraction form
   102,500.16/153,756.72 = 43,328.04/x
3. Step 3: Cross multiply
   102,500.16x = 153,756.72 × 43,328.04
4. Step 4: Simplify right side
   102,500.16x = 6,661,977,314.43
5. Step 5: Solve for x
   x = 6,661,977,314.43/102,500.16
6. Step 6: Final answer
   x = 64,994.80