Finding the Fourth Proportional to 116,978.72, 161,430.67 and 63,263.77

Step by Step Solution

1. Step 1: Write the proportion equation
   116,978.72 : 161,430.67 = 63,263.77 : x
2. Step 2: Convert to fraction form
   116,978.72/161,430.67 = 63,263.77/x
3. Step 3: Cross multiply
   116,978.72x = 161,430.67 × 63,263.77
4. Step 4: Simplify right side
   116,978.72x = 10,212,712,453.33
5. Step 5: Solve for x
   x = 10,212,712,453.33/116,978.72
6. Step 6: Final answer
   x = 87,304.02