Finding the Fourth Proportional to 99,384.77, 137,154.59 and 56,951.51

Step by Step Solution

1. Step 1: Write the proportion equation
   99,384.77 : 137,154.59 = 56,951.51 : x
2. Step 2: Convert to fraction form
   99,384.77/137,154.59 = 56,951.51/x
3. Step 3: Cross multiply
   99,384.77x = 137,154.59 × 56,951.51
4. Step 4: Simplify right side
   99,384.77x = 7,811,160,033.40
5. Step 5: Solve for x
   x = 7,811,160,033.40/99,384.77
6. Step 6: Final answer
   x = 78,595.15