Finding the Fourth Proportional to 99,754.47, 137,642.31 and 59,471.96

Step by Step Solution

1. Step 1: Write the proportion equation
   99,754.47 : 137,642.31 = 59,471.96 : x
2. Step 2: Convert to fraction form
   99,754.47/137,642.31 = 59,471.96/x
3. Step 3: Cross multiply
   99,754.47x = 137,642.31 × 59,471.96
4. Step 4: Simplify right side
   99,754.47x = 8,185,857,266.42
5. Step 5: Solve for x
   x = 8,185,857,266.42/99,754.47
6. Step 6: Final answer
   x = 82,060.05