Finding the Fourth Proportional to 99,141.82, 136,815.83 and 56,700.35

Step by Step Solution

1. Step 1: Write the proportion equation
   99,141.82 : 136,815.83 = 56,700.35 : x
2. Step 2: Convert to fraction form
   99,141.82/136,815.83 = 56,700.35/x
3. Step 3: Cross multiply
   99,141.82x = 136,815.83 × 56,700.35
4. Step 4: Simplify right side
   99,141.82x = 7,757,506,293.17
5. Step 5: Solve for x
   x = 7,757,506,293.17/99,141.82
6. Step 6: Final answer
   x = 78,246.56