Finding the Fourth Proportional to 102,505.50, 153,784.17 and 28,633.50

Step by Step Solution

1. Step 1: Write the proportion equation
   102,505.50 : 153,784.17 = 28,633.50 : x
2. Step 2: Convert to fraction form
   102,505.50/153,784.17 = 28,633.50/x
3. Step 3: Cross multiply
   102,505.50x = 153,784.17 × 28,633.50
4. Step 4: Simplify right side
   102,505.50x = 4,403,379,031.70
5. Step 5: Solve for x
   x = 4,403,379,031.70/102,505.50
6. Step 6: Final answer
   x = 42,957.49