Finding the Fourth Proportional to 111,787.32, 154,277.82 and 64,047

Step by Step Solution

1. Step 1: Write the proportion equation
   111,787.32 : 154,277.82 = 64,047 : x
2. Step 2: Convert to fraction form
   111,787.32/154,277.82 = 64,047/x
3. Step 3: Cross multiply
   111,787.32x = 154,277.82 × 64,047
4. Step 4: Simplify right side
   111,787.32x = 9,881,031,537.54
5. Step 5: Solve for x
   x = 9,881,031,537.54/111,787.32
6. Step 6: Final answer
   x = 88,391.34