Finding the Fourth Proportional to 105,669,003.60, 158,508,487.68 and 87,190,675.49

Step by Step Solution

1. Step 1: Write the proportion equation
   105,669,003.60 : 158,508,487.68 = 87,190,675.49 : x
2. Step 2: Convert to fraction form
   105,669,003.60/158,508,487.68 = 87,190,675.49/x
3. Step 3: Cross multiply
   105,669,003.60x = 158,508,487.68 × 87,190,675.49
4. Step 4: Simplify right side
   105,669,003.60x = 13,820,462,111,786,852
5. Step 5: Solve for x
   x = 13,820,462,111,786,852/105,669,003.60
6. Step 6: Final answer
   x = 130,790,124.26