Finding the Fourth Proportional to 99,367.56, 137,081.16 and 59,058.72

Step by Step Solution

1. Step 1: Write the proportion equation
   99,367.56 : 137,081.16 = 59,058.72 : x
2. Step 2: Convert to fraction form
   99,367.56/137,081.16 = 59,058.72/x
3. Step 3: Cross multiply
   99,367.56x = 137,081.16 × 59,058.72
4. Step 4: Simplify right side
   99,367.56x = 8,095,837,845.72
5. Step 5: Solve for x
   x = 8,095,837,845.72/99,367.56
6. Step 6: Final answer
   x = 81,473.65