Finding the Fourth Proportional to 69,132.72, 103,681.80 and 19,884.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69,132.72 : 103,681.80 = 19,884.72 : x
2. Step 2: Convert to fraction form
   69,132.72/103,681.80 = 19,884.72/x
3. Step 3: Cross multiply
   69,132.72x = 103,681.80 × 19,884.72
4. Step 4: Simplify right side
   69,132.72x = 2,061,683,562.10
5. Step 5: Solve for x
   x = 2,061,683,562.10/69,132.72
6. Step 6: Final answer
   x = 29,822.11