Finding the Fourth Proportional to 99,050.98, 136,675.89 and 56,601.31

Step by Step Solution

1. Step 1: Write the proportion equation
   99,050.98 : 136,675.89 = 56,601.31 : x
2. Step 2: Convert to fraction form
   99,050.98/136,675.89 = 56,601.31/x
3. Step 3: Cross multiply
   99,050.98x = 136,675.89 × 56,601.31
4. Step 4: Simplify right side
   99,050.98x = 7,736,034,419.42
5. Step 5: Solve for x
   x = 7,736,034,419.42/99,050.98
6. Step 6: Final answer
   x = 78,101.54