Finding the Fourth Proportional to 13,643,190.72, 18,827,487.72 and 7,531,488

Step by Step Solution

1. Step 1: Write the proportion equation
   13,643,190.72 : 18,827,487.72 = 7,531,488 : x
2. Step 2: Convert to fraction form
   13,643,190.72/18,827,487.72 = 7,531,488/x
3. Step 3: Cross multiply
   13,643,190.72x = 18,827,487.72 × 7,531,488
4. Step 4: Simplify right side
   13,643,190.72x = 141,798,997,833,327.34
5. Step 5: Solve for x
   x = 141,798,997,833,327.34/13,643,190.72
6. Step 6: Final answer
   x = 10,393,389.69