Finding the Fourth Proportional to 67,869.30, 101,901.15 and 51,345.30

Step by Step Solution

1. Step 1: Write the proportion equation
   67,869.30 : 101,901.15 = 51,345.30 : x
2. Step 2: Convert to fraction form
   67,869.30/101,901.15 = 51,345.30/x
3. Step 3: Cross multiply
   67,869.30x = 101,901.15 × 51,345.30
4. Step 4: Simplify right side
   67,869.30x = 5,232,145,117.10
5. Step 5: Solve for x
   x = 5,232,145,117.10/67,869.30
6. Step 6: Final answer
   x = 77,091.48