Finding the Fourth Proportional to 53,753,185.50, 80,630,073.50 and 13,363,669.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,753,185.50 : 80,630,073.50 = 13,363,669.50 : x
2. Step 2: Convert to fraction form
   53,753,185.50/80,630,073.50 = 13,363,669.50/x
3. Step 3: Cross multiply
   53,753,185.50x = 80,630,073.50 × 13,363,669.50
4. Step 4: Simplify right side
   53,753,185.50x = 1,077,513,653,947,890
5. Step 5: Solve for x
   x = 1,077,513,653,947,890/53,753,185.50
6. Step 6: Final answer
   x = 20,045,577.65