Finding the Fourth Proportional to 53,637,826.10, 80,456,739.15 and 13,248,310.10

Step by Step Solution

1. Step 1: Write the proportion equation
   53,637,826.10 : 80,456,739.15 = 13,248,310.10 : x
2. Step 2: Convert to fraction form
   53,637,826.10/80,456,739.15 = 13,248,310.10/x
3. Step 3: Cross multiply
   53,637,826.10x = 80,456,739.15 × 13,248,310.10
4. Step 4: Simplify right side
   53,637,826.10x = 1,065,915,829,894,010.50
5. Step 5: Solve for x
   x = 1,065,915,829,894,010.50/53,637,826.10
6. Step 6: Final answer
   x = 19,872,465.15