Finding the Fourth Proportional to 106,989.98, 147,645.90 and 61,667.59

Step by Step Solution

1. Step 1: Write the proportion equation
   106,989.98 : 147,645.90 = 61,667.59 : x
2. Step 2: Convert to fraction form
   106,989.98/147,645.90 = 61,667.59/x
3. Step 3: Cross multiply
   106,989.98x = 147,645.90 × 61,667.59
4. Step 4: Simplify right side
   106,989.98x = 9,104,966,826.38
5. Step 5: Solve for x
   x = 9,104,966,826.38/106,989.98
6. Step 6: Final answer
   x = 85,101.12