Finding the Fourth Proportional to 77,595.86, 116,196.15 and 51,220.10

Step by Step Solution

1. Step 1: Write the proportion equation
   77,595.86 : 116,196.15 = 51,220.10 : x
2. Step 2: Convert to fraction form
   77,595.86/116,196.15 = 51,220.10/x
3. Step 3: Cross multiply
   77,595.86x = 116,196.15 × 51,220.10
4. Step 4: Simplify right side
   77,595.86x = 5,951,578,905.18
5. Step 5: Solve for x
   x = 5,951,578,905.18/77,595.86
6. Step 6: Final answer
   x = 76,699.69