Finding the Fourth Proportional to 113,530.97, 156,670.76 and 65,788.76

Step by Step Solution

1. Step 1: Write the proportion equation
   113,530.97 : 156,670.76 = 65,788.76 : x
2. Step 2: Convert to fraction form
   113,530.97/156,670.76 = 65,788.76/x
3. Step 3: Cross multiply
   113,530.97x = 156,670.76 × 65,788.76
4. Step 4: Simplify right side
   113,530.97x = 10,307,175,584.81
5. Step 5: Solve for x
   x = 10,307,175,584.81/113,530.97
6. Step 6: Final answer
   x = 90,787.35