Finding the Fourth Proportional to 38,826,810.72, 53,582,120.10 and 21,424,276.98

Step by Step Solution

1. Step 1: Write the proportion equation
   38,826,810.72 : 53,582,120.10 = 21,424,276.98 : x
2. Step 2: Convert to fraction form
   38,826,810.72/53,582,120.10 = 21,424,276.98/x
3. Step 3: Cross multiply
   38,826,810.72x = 53,582,120.10 × 21,424,276.98
4. Step 4: Simplify right side
   38,826,810.72x = 1,147,958,182,198,025.25
5. Step 5: Solve for x
   x = 1,147,958,182,198,025.25/38,826,810.72
6. Step 6: Final answer
   x = 29,566,120.96