Finding the Fourth Proportional to 116,978.38, 161,429.70 and 63,263.46

Step by Step Solution

1. Step 1: Write the proportion equation
   116,978.38 : 161,429.70 = 63,263.46 : x
2. Step 2: Convert to fraction form
   116,978.38/161,429.70 = 63,263.46/x
3. Step 3: Cross multiply
   116,978.38x = 161,429.70 × 63,263.46
4. Step 4: Simplify right side
   116,978.38x = 10,212,601,368.76
5. Step 5: Solve for x
   x = 10,212,601,368.76/116,978.38
6. Step 6: Final answer
   x = 87,303.32