Finding the Fourth Proportional to 99,649.76, 137,555.06 and 73,003.91

Step by Step Solution

1. Step 1: Write the proportion equation
   99,649.76 : 137,555.06 = 73,003.91 : x
2. Step 2: Convert to fraction form
   99,649.76/137,555.06 = 73,003.91/x
3. Step 3: Cross multiply
   99,649.76x = 137,555.06 × 73,003.91
4. Step 4: Simplify right side
   99,649.76x = 10,042,056,167.49
5. Step 5: Solve for x
   x = 10,042,056,167.49/99,649.76
6. Step 6: Final answer
   x = 100,773.52