Finding the Fourth Proportional to 111,465.30, 153,822.10 and 63,719.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,465.30 : 153,822.10 = 63,719.72 : x
2. Step 2: Convert to fraction form
   111,465.30/153,822.10 = 63,719.72/x
3. Step 3: Cross multiply
   111,465.30x = 153,822.10 × 63,719.72
4. Step 4: Simplify right side
   111,465.30x = 9,801,501,141.81
5. Step 5: Solve for x
   x = 9,801,501,141.81/111,465.30
6. Step 6: Final answer
   x = 87,933.21