Finding the Fourth Proportional to 99,377.13, 137,139.30 and 73,997.00

Step by Step Solution

1. Step 1: Write the proportion equation
   99,377.13 : 137,139.30 = 73,997.00 : x
2. Step 2: Convert to fraction form
   99,377.13/137,139.30 = 73,997.00/x
3. Step 3: Cross multiply
   99,377.13x = 137,139.30 × 73,997.00
4. Step 4: Simplify right side
   99,377.13x = 10,147,896,096.40
5. Step 5: Solve for x
   x = 10,147,896,096.40/99,377.13
6. Step 6: Final answer
   x = 102,115.00