Finding the Fourth Proportional to 53,638,522.10, 80,457,783.15 and 13,249,006.10

Step by Step Solution

1. Step 1: Write the proportion equation
   53,638,522.10 : 80,457,783.15 = 13,249,006.10 : x
2. Step 2: Convert to fraction form
   53,638,522.10/80,457,783.15 = 13,249,006.10/x
3. Step 3: Cross multiply
   53,638,522.10x = 80,457,783.15 × 13,249,006.10
4. Step 4: Simplify right side
   53,638,522.10x = 1,065,985,659,746,827.25
5. Step 5: Solve for x
   x = 1,065,985,659,746,827.25/53,638,522.10
6. Step 6: Final answer
   x = 19,873,509.15