Finding the Fourth Proportional to 72,132.31, 99,546.38 and 43,460.98

Step by Step Solution

1. Step 1: Write the proportion equation
   72,132.31 : 99,546.38 = 43,460.98 : x
2. Step 2: Convert to fraction form
   72,132.31/99,546.38 = 43,460.98/x
3. Step 3: Cross multiply
   72,132.31x = 99,546.38 × 43,460.98
4. Step 4: Simplify right side
   72,132.31x = 4,326,382,515.22
5. Step 5: Solve for x
   x = 4,326,382,515.22/72,132.31
6. Step 6: Final answer
   x = 59,978.43