Finding the Fourth Proportional to 69,773,426.78, 104,663,025.92 and 20,589,280.42

Step by Step Solution

1. Step 1: Write the proportion equation
   69,773,426.78 : 104,663,025.92 = 20,589,280.42 : x
2. Step 2: Convert to fraction form
   69,773,426.78/104,663,025.92 = 20,589,280.42/x
3. Step 3: Cross multiply
   69,773,426.78x = 104,663,025.92 × 20,589,280.42
4. Step 4: Simplify right side
   69,773,426.78x = 2,154,936,390,272,608.75
5. Step 5: Solve for x
   x = 2,154,936,390,272,608.75/69,773,426.78
6. Step 6: Final answer
   x = 30,884,772.18