Finding the Fourth Proportional to 129,019.08, 193,584.06 and 69,897

Step by Step Solution

1. Step 1: Write the proportion equation
   129,019.08 : 193,584.06 = 69,897 : x
2. Step 2: Convert to fraction form
   129,019.08/193,584.06 = 69,897/x
3. Step 3: Cross multiply
   129,019.08x = 193,584.06 × 69,897
4. Step 4: Simplify right side
   129,019.08x = 13,530,945,041.82
5. Step 5: Solve for x
   x = 13,530,945,041.82/129,019.08
6. Step 6: Final answer
   x = 104,875.54