Finding the Fourth Proportional to 89,889.13, 134,791.98 and 52,459.98

Step by Step Solution

1. Step 1: Write the proportion equation
   89,889.13 : 134,791.98 = 52,459.98 : x
2. Step 2: Convert to fraction form
   89,889.13/134,791.98 = 52,459.98/x
3. Step 3: Cross multiply
   89,889.13x = 134,791.98 × 52,459.98
4. Step 4: Simplify right side
   89,889.13x = 7,071,184,574.96
5. Step 5: Solve for x
   x = 7,071,184,574.96/89,889.13
6. Step 6: Final answer
   x = 78,665.62