Finding the Fourth Proportional to 69,819.02, 104,731.76 and 19,902.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,819.02 : 104,731.76 = 19,902.50 : x
2. Step 2: Convert to fraction form
   69,819.02/104,731.76 = 19,902.50/x
3. Step 3: Cross multiply
   69,819.02x = 104,731.76 × 19,902.50
4. Step 4: Simplify right side
   69,819.02x = 2,084,423,379.50
5. Step 5: Solve for x
   x = 2,084,423,379.50/69,819.02
6. Step 6: Final answer
   x = 29,854.67