Finding the Fourth Proportional to 107,119.31, 147,722.67 and 64,091.91

Step by Step Solution

1. Step 1: Write the proportion equation
   107,119.31 : 147,722.67 = 64,091.91 : x
2. Step 2: Convert to fraction form
   107,119.31/147,722.67 = 64,091.91/x
3. Step 3: Cross multiply
   107,119.31x = 147,722.67 × 64,091.91
4. Step 4: Simplify right side
   107,119.31x = 9,467,828,070.60
5. Step 5: Solve for x
   x = 9,467,828,070.60/107,119.31
6. Step 6: Final answer
   x = 88,385.82