Finding the Fourth Proportional to 12,898,641.57, 19,341,983.56 and 4,809,445.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,898,641.57 : 19,341,983.56 = 4,809,445.25 : x
2. Step 2: Convert to fraction form
   12,898,641.57/19,341,983.56 = 4,809,445.25/x
3. Step 3: Cross multiply
   12,898,641.57x = 19,341,983.56 × 4,809,445.25
4. Step 4: Simplify right side
   12,898,641.57x = 93,024,210,837,462.95
5. Step 5: Solve for x
   x = 93,024,210,837,462.95/12,898,641.57
6. Step 6: Final answer
   x = 7,211,938.59